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Bafang

Manufacturer of e-bike drive systems — motors, displays, batteries, controllers and sensors — supplied to bicycle brands rather than sold as complete bicycles. Its motors carry two designations: a marketing name such as M620 and an engineering designation such as MM G510.750/1000/1300.C, and its own documentation is indexed by the second.

bafang-e.com

About this brand

Type
Manufacturer

Last updated: 8 September 2026

The company

Developing e-mobility since
2003, by Bafang's own account

“Bafang, one of the leading manufacturers of e-mobility components and complete e-drive systems, has been developing solutions for electric vehicles since 2003.”

Source: bafang-e.com/en/about-bafang/company

Sales and service network
Netherlands, USA, Germany, France, Italy, Denmark, Taiwan

“Bafang has Sales and Service Centers in the Netherlands, in the USA, in Germany, in France, in Italy , in Denmark and in Taiwan, China. The newly opened factory in Poland will focus on production of mid motors systems for the European markets.”

Source: bafang-e.com/en/about-bafang/company

European manufacturing
A Poland factory builds mid-motor systems for Europe

“The newly opened factory in Poland will focus on production of mid motors systems for the European markets.”

Source: bafang-e.com/en/about-bafang/company

Leadership
Qinghua Wang, chairman and managing director

“Chairman and managing director Qinghua Wang says: “Bafang's goal is to produce innovative and high-quality products for our customers that make a tangible contribution to their riding comfort. Our employees are dedicated to this aim. We embrace every challenge and strive to develop new groundbreaking products that set new standards.””

Source: bafang-e.com/en/about-bafang/company

Company that issues the battery declarations
Bafang New Energy (Suzhou) Co., Ltd.

“Manufacturer: 八方新能源(苏州)有限公司 Bafang New Energy (Suzhou) Co., Ltd. Address: 苏州市苏相合作区春兴路 11-8 No.11-8 Chunxing Rd., Caohu Community,Xiangcheng District 215144, Suzhou”

Source: bafang-e.com/Uploaded/Labels/BT F034.B630.C(EVE).pdf

Company that issues the display declarations
Bafang Electric (Suzhou), from two addresses over time

“We Bafang Electric (Suzhou) Co.,Ltd. Address: No.6 Dongyanli Rd, Suzhou Industrial Park 215125, Suzhou, China declare under our sole responsibility that the product”

Source: bafang-e.com/Uploaded/Labels/DP C271.pdf

Who the battery declarations are attributed to
The page and the documents name different companies

Disputed

“Hereby,Bafang Electric (Suzhou) Co., Ltd. declares that the LMT Battery (Light Means of Transport Battery) is in compliance with Performance and Durability Requirements according to Article 10 of (EU) 2023/1542. The full text of the Technical Documentation for Performance and Durability Requirements is available on this page.”

Source: bafang-e.com/en/service/conformity/batteries

    What they say they do
    Drive systems and components, supplied to vehicle makers

    “Apart from high-quality motors, we offer a complete product range of components for e-bikes and electric scooters. Our portfolio also includes user-friendly HMIs (human machine interface), reliable storage batteries and sensors for a natural driving feel, either as individual components or as a complete system. Connectors and motor control units (controllers) complement our product range.”

    Source: bafang-e.com/en/about-bafang/company

    Motor and performance

    System voltages Bafang build for
    36, 43 and 48 V in the motor manuals

    “Rated voltage (V) 36 / 43 / 48”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-MM G333-EN.pdf

    Torque the sensor can measure
    Up to 80 N.m of pedal torque

    “Measuring range of torque signal (N.m) 0-80”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN.pdf

    Left-to-right torque accuracy
    Left and right pedals within 3% of each other

    “Accuracy class deviation(left and right) <3%”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN.pdf

    Torque sensor sealing
    IP54 — the least sealed part in the system

    “Protection grade IP54”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN.pdf

    Pedal sensor pulses per revolution
    12 pulses per crank revolution on the PA051

    “Impulses Per Revolution 12”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA051-EN.pdf

    Whether the assisted speed is fixed
    A dealer can change it; it is not a property of the motor

    “This interface displays 4 parameters: Speed Limit %, Max. Power, Startup Angle, and Acceleration. They can be adjusted by pulling the slider or rotating the pointer. Speed Limit % is used to adjust the power-assisted speed of different levels to enrich the feeling of riding. The smaller the value, the speed of that support level will be lower.”

    Source: bafang-e.com/Uploaded/Labels/BESST Pro Upper Computer Software Operation Manual _V1.7 (EN).pdf

    What the support ratio measures
    Motor output divided by rider input

    “Assistance % is the motor output power / human power. The larger the value, the powerful the power assistance.”

    Source: bafang-e.com/Uploaded/Labels/BESST Pro Upper Computer Software Operation Manual _V1.7 (EN).pdf

    Startup angle
    How far the cranks turn before assistance starts

    “Startup Angle indicates the crank rotation angle before the motor starts the power assisting. It can adjust the angle of rotation of the pedal from 0 speed to the power assistance being turned on.”

    Source: bafang-e.com/Uploaded/Labels/BESST Pro Upper Computer Software Operation Manual _V1.7 (EN).pdf

    Battery and charging

    The largest battery they claim to make

    The maker’s own documents give different figures

    960 Wh

    efat · retrieved by us 8 September 2026

    “We provide BATTERY PACK up to 960Wh energy powered by state-of-the-art high capacity cells. Integrated technologies allow for essential stats.”

    Source: bafang-e.com/en/applications/efat

    600 Wh

    emtb · retrieved by us 8 September 2026

    “BATTERY PACK. The maximum energy content of our batteries is 600Wh. So you’ll have plenty of power, even if you want to ride your favourite trail twice over.”

    Source: bafang-e.com/en/applications/emtb

    Energy returned
    95% or better

    “Energy round trip efficiency (%) 95% or above”

    Source: bafang-e.com/Uploaded/Labels/BT F150.B504.C.pdf

    Battery care and safety

    Their warning about charging in the cold
    Charging a cold battery can adversely affect its lifespan

    “Charging a cold battery can adversely affect its lifespan, so it's advisable to avoid doing so. If your battery is cold, allow it to warm up to room temperature gradually before charging, which may take an hour or more.”

    Source: bafang-e.com/en/media/blog/blog-post/detail/471

    Power they say is lost in the cold
    up to 20%

    “Very cold weather can reduce battery efficiency, potentially leading to a decrease of up to 20% in available power.”

    Source: bafang-e.com/en/media/blog/blog-post/detail/471

    Temperature range for storage
    10°C to 25°C (50°F to 77°F)

    “Avoid extreme temperatures: The ideal storage temperature ranges from 10°C to 25°C (50°F to 77°F). Do not store your lithium battery in extremely hot or cold environments, such as a car trunk in the summer or an unheated garage in winter. Extreme temperatures can lead to irreversible damage.”

    Source: bafang-e.com/en/media/blog/blog-post/detail/425

    The charge they say to store it at

    The maker’s own documents give different figures

    charge about (60-80%)

    BF-UM-C-BT F15-EN.pdf · retrieved by us 4 September 2026

    “If you do not use your pedelec for a long time, remove the battery, and charge about (60-80%) on. Store the battery separately in a suitable dry place.”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-BT F15-EN.pdf

    approximately 50% capacity

    425 · retrieved by us 8 September 2026

    “Charge to 50%: If you plan to store your e-bike for an extended period (e.g. during the winter months), charge the battery to approximately 50% capacity. This helps prevent over-discharging or overcharging, both of which can damage the battery.”

    Source: bafang-e.com/en/media/blog/blog-post/detail/425

    between 30% and 60%

    471 · retrieved by us 8 September 2026

    “If you plan to use your bike extensively during winter, store the battery at room temperature with a charge level between 30% and 60%. If using less often, it's advisable to check and top up the battery monthly to maintain this optimal range. Avoid leaving the battery fully charged or completely drained.”

    Source: bafang-e.com/en/media/blog/blog-post/detail/471

    Which charger may be used
    Bafang's own charger only

    “Please only use the original BAFANG charger to charge the battery. The battery is not fully charged when it is delivered.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-BT C01-EN.pdf

    What connecting to the wrong system risks
    Connecting a pack to an incompatible system can cause a fire

    “It is possible for the battery to cause a fire, explosion or hazard if the battery is connected to an incompatible system. Do not open, disassemble or pierce the battery as this can lead to short circuits, leaks, fires or explosions.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-BT C01-EN.pdf

    Capacity lost per cycle
    Under 0.05% per cycle

    “Capacity fading (%) Less than 0.05 % Every time”

    Source: bafang-e.com/Uploaded/Labels/BT F150.B504.C.pdf

    Power lost after 600 cycles
    0%

    “Power fading (%) 0%”

    Source: bafang-e.com/Uploaded/Labels/BT F150.B504.C.pdf

    Resistance gained per ten cycles
    0.04% per ten cycles

    “Internal resistance increase (%) 0.04%/10 every cycle”

    Source: bafang-e.com/Uploaded/Labels/BT F150.B504.C.pdf

    Efficiency lost per ten cycles
    0.16% per ten cycles

    “Energy round trip efficiency fading (%) 0.16%/10 every cycle”

    Source: bafang-e.com/Uploaded/Labels/BT F150.B504.C.pdf

    Temperature every figure was measured at
    23 ± 5 °C

    “Test Ambient temperature: 23± 5 ℃.”

    Source: bafang-e.com/Uploaded/Labels/BT F150.B504.C.pdf

    Brakes and safety

    Touching the motor after a ride
    The housing can get hot enough to burn

    “After a ride, do not allow your unprotected hands or legs to come into contact with the motor housing. Under extreme conditions, such as continuously high torques at low travel speeds, or when riding up hills or carry loadds, the housing may reach a very high temperature.”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-RM G3310.250.D-EN.pdf

    Frame and components

    Their shaft drive system
    auto-shift shaft drive system

    “Bafang has proposed a self-developed system technology called the “auto-shift shaft drive system”, which utilizes an auto dual-speed hub motor, shaft drive system and a torque sensor at the bottom bracket.”

    Source: bafang-e.com/en/media/blog/blog-post/detail/413

    How their automatic gearbox works
    automatically adjust the gearbox ratio dependent on the centrifugal force produced by the wheel speed

    “Bafang has integrated the gearbox into the hub motor which will automatically adjust the gearbox ratio dependent on the centrifugal force produced by the wheel speed. The clutch will change the gear mechanically and the rider will get a better cadence without any manual gear-shifting action”

    Source: bafang-e.com/en/media/blog/blog-post/detail/413

    Speed sensor housing material
    Two speed sensors, two different filled nylons

    Unconfirmed

    “The main body of the speed sensor is PA66 + 30%CF, and the cabling is PVC.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR SD021-EN.pdf

    “The main body of the speed sensor is PA66 + 30%GF, and the cabling is PVC.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR SD071-EN.pdf

    Cadence sensors published
    Five cadence sensors under one manual

    “Model No. SR PA112.32.S SR PA121.32.S SR PA131.32.S SR PA142.32.S SR PA172.32.S”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA1XX-EN.pdf

    Spoke magnet to speed sensor clearance

    The maker’s own documents give different figures

    between 10 mm and 20 mm

    BF-DM-C-DP C271-EN.pdf · retrieved by us 4 September 2026

    “2. Check that the magnet attached to the spoke is aligned with the speed sensor and that the distance is between 10 mm and 20 mm.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    10 to 15 mm

    BF-DM-C-DP E162&E163-EN.pdf · retrieved by us 4 September 2026

    “1. Check whether the spoke magnet has fallen off or the clearance between the spoke magnet and the speed sensor is within the normal range (10-15mm).”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP E162&E163-EN.pdf

    Compatibility

    Torque sensor bottom bracket thread
    Standard BSA thread, BC1.37" x 24

    “C= φ 44±0.15mm D: BC1.37''×24 F= 17±0.3mm G= M8xP1x25 H= 39mm”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2X2.32.ST-EN.pdf

    Bottom bracket widths the torque sensor fits
    68mm, 73mm, 84mm, 100mm, 110mm, 120mm

    “Scope: It is applicable to the EPAC which has the BB length for 68mm, 73mm, 84mm, 100mm, 110mm, 120mm.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN.pdf

    SR PA211.32.ST.C fits
    68 mm bottom bracket, 47.5 mm chain line, 148 mm axle

    “SR PA211.32.ST 148 74 68 34 40.5 0.5 17 47.5”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN (with securing ring).pdf

    SR PA232.32.ST fits
    73 mm bottom bracket, 50 mm chain line, 148 mm shaft

    “SR PA232.32.ST 148±1mm 73±0.5mm 50±0.8mm 3.0±0.5mm”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2X2.32.ST-EN.pdf

    SR PA242.32.ST fits
    84 mm bottom bracket, 55.5 mm chain line, 160 mm shaft

    “SR PA242.32.ST 160±1mm 84±0.5mm 55.5±0.8mm 2.5±0.5mm”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2X2.32.ST-EN.pdf

    SR PA222.32.ST fits
    100 mm bottom bracket, 63.5 mm chain line, 176 mm shaft

    “SR PA222.32.ST 176±1mm 100±0.5mm 63.5±0.8mm 2.5±0.5mm”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2X2.32.ST-EN.pdf

    SR PA252.32.ST fits
    110 mm bottom bracket, 68.5 mm chain line, 186 mm shaft

    “SR PA252.32.ST 186±1mm 110±0.5mm 68.5±0.8mm 2.5±0.5mm”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2X2.32.ST-EN.pdf

    SR PA262.32.ST fits
    120 mm bottom bracket, 73.5 mm chain line, 196 mm shaft

    “SR PA262.32.ST 196±1mm 120±0.5mm 73.5±0.8mm 2.5±0.5mm”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2X2.32.ST-EN.pdf

    SR PA231.32.ST.C fits
    73 mm bottom bracket, 50 mm chain line, 148 mm axle

    “SR PA231.32.ST 148 74 73 36.5 40.5 3 17 50”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN (with securing ring).pdf

    SR PA241.32.ST.C fits
    84 mm bottom bracket, 55.5 mm chain line, 160 mm axle

    “SR PA241.32.ST 160 80 84 42 40.5 2.5 17 55.5”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN (with securing ring).pdf

    SR PA221.32.ST.C fits
    100 mm bottom bracket, 63.5 mm chain line, 167 mm axle

    “SR PA221.32.ST 167 83.5 100 50 38 4.5 15 63.5”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN (with securing ring).pdf

    SR PA251.32.ST.C fits
    110 mm bottom bracket, 68.5 mm chain line, 187 mm axle

    “SR PA251.32.ST 187 93.5 110 55 38 0.5 15 68.5”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN (with securing ring).pdf

    SR PA261.32.ST.C fits
    120 mm bottom bracket, 73.5 mm chain line, 200 mm axle

    “SR PA261.32.ST 200 100 120 60 40.5 0.5 17 73.5”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2XX.32.ST.C-EN (with securing ring).pdf

    Speed sensor bottom bracket thread
    BC1.37"*24

    “The thread standard BC1.37"*24”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA152-162-EN.pdf

    Sensor connector
    G6.4.3 — six pins

    “G6.4.3 1 orange 5V [power +] 2 purple TX / speed signal 1 (input) 3 black GND [power -] 4 green Speed signal 5 brown Torque signal 6 white TX / Speed signal 2 (input)”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2X2.32.ST-EN.pdf

    The compatibility list Bafang do not publish
    Bafang do not publish it; they supply it by email

    Unconfirmed

    “BESST Pro only supports the products that have been matched by BAFANG for compatibility. For details, please refer to the list of matching system, which is kept up-to-date constantly. If the product is not listed, it will be incompatible with BESST Pro. Additionally, note that BAFANG products released prior to the implementation of EN 15194:2017 regulations are not supported by BESST pro as well. Please contact service@bafang-e.com for the detailed list of matching system.”

    Source: bafang-e.com/Uploaded/Labels/BESST Pro Upper Computer Software Operation Manual _V1.7 (EN).pdf

    Identity

    The domain their own legal notice gives
    https://www.bafang-e.com

    “Bafang Electric (Suzhou) Co.,Ltd. No.9 Heshun Road , Suzhou Industrial Park 215122, Suzhou China Telephone: +86 (0)51265975996 Fax: +86 (0)51287171277 E-Mail: info@bafang-e.com”

    Source: bafang-e.com/en/imprint

    The address on their regulatory filings
    No.6 Dongyanli Rd, Suzhou Industrial Park 215125, Suzhou, China

    “Bafang Electric (Suzhou) Co., Ltd. No.6 Dongyanli Rd, Suzhou Industrial Park 215125, Suzhou, China Suzhou, 215125 China”

    Source: apps.fcc.gov/oetcf/tcb/reports/Tcb731GrantForm.cfm?mode=COPY&RequestTimeout=500&tcb_code=&application_id=sgVMCirDbLyei73X97JOUQ%3D%3D&fcc_id=2A9GN-DPE161C

    Legal entity
    Bafang Electric (Suzhou) Co., Ltd.

    “LEGAL NOTICE Bafang Electric (Suzhou) Co.,Ltd. No.9 Heshun Road , Suzhou Industrial Park 215122, Suzhou China”

    Source: bafang-e.com/en/imprint

    Headquarters
    Suzhou Industrial Park, Suzhou, China

    “Bafang Electric (Suzhou) Co.,Ltd. No.9 Heshun Road , Suzhou Industrial Park 215122, Suzhou China”

    Source: bafang-e.com/en/imprint

    Place of origin
    China — Suzhou, near Shanghai

    “The head office, development and manufacturing center is based in Suzhou, near Shanghai.”

    Source: bafang-e.com/en/about-bafang/company

    Warranty, returns and support

    What voids a warranty claim
    Opening it voids warranty claims

    “Do not disassemble the drive unit yourself. The drive unit must only be repaired by qualified personnel using only orignal spare parts. This will ensure that the safety of the drive unit is maintained. Unauthorised opening of the drive unit will render warranty claims null and void.”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-RM G3310.250.D-EN.pdf

    Which spare parts Bafang require
    Bafang original parts only

    “Be sure to follow the instructions in the manuals when installing the product. Only use Bafang original conponents and spare parts. If a component or spare part is incorrectly assembled ar adjusted, it can lead to product failure or accident.”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-RM G3310.250.D-EN.pdf

    What the display warranty excludes
    Wear, normal use and ageing are excluded

    “Please use this product with care. Do not use thinners or other solvents to clean the display. Such substances can damage the surfaces. Warranty is not included due to wear and normal use and aging.”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-DP C271-EN.pdf

    Law and where you can ride

    How the speed cap is enforced
    Bafang cap the setting by the account's region

    “To comply with legal requirements, the upper limit of the speed limit is automatically changed according to the country/region of the account.”

    Source: bafang-e.com/Uploaded/Labels/BESST Pro Upper Computer Software Operation Manual _V1.7 (EN).pdf

    Bafang on raising the power or speed
    Do not raise the power or the speed

    “Do not attemp to change the performance of the product. Especially increase the power of the drive unit or the maximum speed that it supports. Doing this may put yourself and others at risk, and you may also breach statutory regulations.”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-RM G3310.250.D-EN.pdf

    Bafang on modifying the parameters
    Never modify the performance parameters

    “Never modify the performance peremeters. Doing so may cause a system error or legal question.”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-MM G2300.250.C-EN.pdf

    Recalls and fire safety

    What the CPSC recall search returns
    No results for "Bafang" in Recalls.

    Source: cpsc.gov/Recalls?search_combined_fields=Bafang&field_rc_date_value=&field_rc_date_value_1=&field_rc_hazards_target_id=All&field_rc_recall_by_product_target_id=All&field_rc_manufactured_in_value=

    How this brand publishes

    A manual whose language tag does not match it
    The Czech manual identifies itself as the English one

    “MANUÁL UěIVATELSKÁ PRO MOTOR BF-UM-C-MM G210-EN Listopad 2019”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-MM G210-CZ.pdf

    Catalogue and manuals disagree on controllers
    The CR C101.C: 500 W in the catalogue, 850 W in its manual

    Unconfirmed

    “Power Supply: 48V DC Rated Input Power: 850W Rated Output Power: 650W Rated Current: 18A Undervoltage Protection: 42V”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-CR C101-EN.pdf

    What the number in a designation means
    The number in the designation is watt-hours

    “Model numbers: BT C01.340. UC (340 W/h) BT C01.450. UC (450 W/h) BT C01.600.UC (600 W/h) BT C01.750.UC (750 W/h)”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-BT C01-EN.pdf

    Two declarations, one pack, two voltages
    Same 15 Ah and 540 Wh, labelled 43 V on one and 36 V on the other

    “Model: F360.B540.C Ratings: 36V,15Ah,540W”

    Source: bafang-e.com/Uploaded/Labels/BT F360.B540.C.pdf

    A capacity with the decimal point missing
    A pack declared at 175 Ah; its own table says 17.5

    “Ratings: 43V,175Ah,630W ... Rated capacity(Ah) 17.5Ah”

    Source: bafang-e.com/Uploaded/Labels/BT F150.B630.C(18650GA).pdf

    What separates a display pair
    On several display pairs, the higher number is the Bluetooth one

    “Bluetooth indication (only light up in DP E181.CAN)”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-DP E180-E181-EN.pdf

    “Bluetooth Function (only in DP C245.CAN)”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-DP C244&C245-EN (BLE5.1).pdf

    Manuals footed with the wrong document code
    Five of them — naming another motor, another manual, or another language

    “Model MM G2300.250.C ... BF-DM-C-RM G3600-EN November 2023”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-MM G2300.250.C-EN.pdf

    “Model MM G5300.500/750.C ... BF-UM-C-RM G5300-EN March 2024”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-MM G5300-EN.pdf

    “USER MANUAL FOR MOTOR ... BF-DM-C-RM G040-DC-EN November 2019”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-RM G040-DC-EN.pdf

    “DEALER MANUAL FOR MOTOR ... BF-DM-C-RM G0210-D-EN October 2023”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-RM G0210-D-EN.pdf

    “MANUALE DELL'UTENTE PER IL MOTORE ... BF-UM-C-MM G532-EN Novembre 2019”

    Source: bafang-e.com/uploaded/manual/BF-UM-C-MM G532-IT.pdf

    Certification claims

    EU standards compliance they claim
    EN 50604-1 and Regulation 2023/1542

    “While meeting stringent new EU standards like EN 50604-1 and Regulation 2023/1542 demonstrates Bafang's fundamental commitment to European safety expectations and consumer trust, the true focus lies in how these batteries achieve superior performance through advanced design, rigorous testing, precise manufacturing, and sustainable practices.”

    Source: bafang-e.com/en/media/blog/blog-post/detail/495

    Quality management claim
    ISO 9001 claimed for production sites, not for products

    “Our production sites are ISO 9001 certified. Our products are RoHS compliant and have the CE label.”

    Source: bafang-e.com/en/about-bafang/company

    Speed sensor redundancy
    Two hall sensors, which Bafang tie to EN 15194

    “Double hall ensures the security of signal detection and meets the safety requirements of EN15194.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR SD021-EN.pdf

    Torque sensor certification claimed
    CE, EN 15194, EN 14764, EN 14766

    “Certification CE , EN15194/14764/14766”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-SR PA2X2.32.ST-EN.pdf

    Product compliance claim
    RoHS compliance and a CE label are claimed

    “Our production sites are ISO 9001 certified. Our products are RoHS compliant and have the CE label.”

    Source: bafang-e.com/en/about-bafang/company

    FCC identifier
    2A9GN-DPE161C

    “FCC IDENTIFIER: 2A9GN-DPE161C Name of Grantee: Bafang Electric (Suzhou) Co., Ltd.”

    Source: apps.fcc.gov/oetcf/tcb/reports/Tcb731GrantForm.cfm?mode=COPY&RequestTimeout=500&tcb_code=&application_id=sgVMCirDbLyei73X97JOUQ%3D%3D&fcc_id=2A9GN-DPE161C

    What the FCC grant covers
    Display with Bluetooth Low Energy

    “Equipment Class: Digital Transmission System Notes: Display with Bluetooth Low Energy”

    Source: apps.fcc.gov/oetcf/tcb/reports/Tcb731GrantForm.cfm?mode=COPY&RequestTimeout=500&tcb_code=&application_id=sgVMCirDbLyei73X97JOUQ%3D%3D&fcc_id=2A9GN-DPE161C

    Frequency band and output power
    2402.0 - 2480.0

    “FCC Rule Parts Frequency Range (MHZ) Output Watts Frequency Tolerance Emission Designator 15C 2402.0 - 2480.0 0.001567 Power listed is conducted peak output power.”

    Source: apps.fcc.gov/oetcf/tcb/reports/Tcb731GrantForm.cfm?mode=COPY&RequestTimeout=500&tcb_code=&application_id=sgVMCirDbLyei73X97JOUQ%3D%3D&fcc_id=2A9GN-DPE161C

    Who holds the FCC grant
    Bafang Electric (Suzhou) Co., Ltd.

    “Bafang Electric (Suzhou) Co., Ltd. No.6 Dongyanli Rd, Suzhou Industrial Park 215125, Suzhou, China Suzhou, 215125 China”

    Source: apps.fcc.gov/oetcf/tcb/reports/Tcb731GrantForm.cfm?mode=COPY&RequestTimeout=500&tcb_code=&application_id=sgVMCirDbLyei73X97JOUQ%3D%3D&fcc_id=2A9GN-DPE161C

    Who signed the FCC grant
    TUV SUD BABT UNLIMITED

    “TCB Certification Issued Under the Authority of the Federal Communications Commission By: TUV SUD BABT UNLIMITED Octagon House, Concorde Way Segensworth North Fareham, PO15 5RL United Kingdom Date of Grant: 05/16/2023”

    Source: apps.fcc.gov/oetcf/tcb/reports/Tcb731GrantForm.cfm?mode=COPY&RequestTimeout=500&tcb_code=&application_id=sgVMCirDbLyei73X97JOUQ%3D%3D&fcc_id=2A9GN-DPE161C

    Error codes

    Error 04
    The throttle has fault.

    “04 The throttle has fault. 1. Check the connector and cable of the throttle are not damaged and correctly connected. 2. Disconnect and reconnect the throttle, if still no function please change the throttle.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 05
    The throttle is not back in its correct position.

    “05 The throttle is not back in its correct position. Check the connector from the throttle is correctly connected. If this does not solve the problem, please change the throttle.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 07
    Overvoltage protection

    “07 Overvoltage protection 1. Remove and re-Insert the battery to see if it resolves the problem. 2. Using the BESST tool update the controller. 3. Change the battery to resolve the problem.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 08
    Error with the hall sensor signal inside the motor

    “08 Error with the hall sensor signal inside the motor 1. Check all connectors from the motor are correctly connected. 2. If the problem still occurs, please change the motor.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 09
    Error with the Engine phase's

    “09 Error with the Engine phase's Please change the motor.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 10
    The temperature inside the engine has reached its maximum protection value

    “10 The temperature inside the engine has reached its maximum protection value 1. Turn off the system and allow the Pedelec to cool down. 2. If the problem still occurs, please change the motor.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 11
    The temperature sensor inside the motor has an error

    “11 The temperature sensor inside the motor has an error Please change the motor.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 12
    Error with the current sensor in the controller

    “12 Error with the current sensor in the controller Please change the controller or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 13
    Error with the temperature sensor inside of the battery

    “13 Error with the temperature sensor inside of the battery 1. Check all connectors from the battery are correctly connected to the motor. 2. If the problem still occurs, please change the Battery.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 14
    The controller has reached its maximum protection temperature

    “14 The protection temperature inside the controller has reached its maximum protection value 1. Allow the pedelec to cool down and restart the system. 2. If the problem still occurs, please change the controller or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 15
    Error with the temperature sensor inside the controller

    “15 Error with the temperature sensor inside the controller 1. Allow the pedelec to cool down and restart the system. 2. If the problem still occurs, Please change the controller or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 21
    Speed sensor Error

    “21 Speed sensor Error 1. Restart the system 2. Check that the magnet attached to the spoke is aligned with the speed sensor and that the distance is between 10 mm and 20 mm. 3. Check that the speed sensor connector is connected correctly. 4. Connect the pedelec to BESST, to see if there is a signal from the speed sensor. 5. Using the BESST Tool- update the controller to see if it resolves the problem.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 26
    Speed signal of the torque sensor has an error

    “26 Speed signal of the torque sensor has an error 1. Check that all connections are connected correctly. 2. Please connect the pedelec to the BESST system to see if speed signal can be read by the BESST tool. 3. Change the Display to see if the problem is solved. 4. Using the BESST Tool update the controller to see if it resolves the problem, if not please change the torque sensor or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 27
    Overcurrent from controller

    “27 Overcurrent from controller Using the BESST tool update the controller. If the problem still occurs, please change the controller or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 30
    Communication problem

    “30 Communication problem 1. Check all connections on the pedelec are correctly connected. 2. Using the BESST Tool run a diagnostics test, to see if it can pinpoint the problem. 3. Change the display to see if the problem is solved. 4. Change the EB-BUS cable to see if it resolves the problem. 5. Using the BESST tool, re-update the controller software. If the problem still occurs please change the controller or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 33
    Brake signal has an error (If brake sensors are fitted)

    “33 Brake signal has an error (If brake sensors are fitted) 1. Check all connectors are correctly connected on the brakes. 2. Change the brakes to see if the problem is solved. If problem continues Please change the controller or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 35
    Detection circuit for 15V has an error

    “35 Detection circuit for 15V has an error Using the BESST tool update the controller to see if this resolves the problem. If not, please change the controller or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 36
    Detection circuit on the keypad has an error

    “36 Detection circuit on the keypad has an error Using the BESST tool update the controller to see if this resolves the problem. If not, please change the controller or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 37
    WDT circuit is faulty

    “37 WDT circuit is faulty Using the BESST tool update the controller to see if this resolves the problem. If not, please change the controller or contact your supplier.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 41
    Total voltage from the battery is too high

    “41 Total voltage from the battery is too high Please change the battery.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 42
    Total voltage from the battery is too low

    “42 Total voltage from the battery is too low Please Charge the battery. If the problem still occurs, please change the battery.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 43
    Total power from the battery cells is too high

    “43 Total power from the battery cells is too high Please change the battery.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 44
    Voltage of the single cell is too high

    “44 Voltage of the single cell is too high Please change the battery.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 45
    Temperature from the battery is too high

    “45 Temperature from the battery is too high Please let the pedelec cool down. If problem still occurs, please change the battery.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 46
    The temperature of the battery is too low

    “46 The temperature of the battery is too low Please bring the battery to room temperature. If the problem still occurs, please change the battery.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 47
    SOC of the battery is too high

    “47 SOC of the battery is too high Please change the battery.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 48
    SOC of the battery is too low

    “48 SOC of the battery is too low Please change the battery.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 61
    Switching detection defect

    “61 Switching detection defect 1. Check the gear shifter is not jammed. 2. Please change the gear shifter.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 62
    Electronic derailleur cannot release.

    “62 Electronic derailleur cannot release. Please change the derailleur.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 71
    Electronic lock is jammed

    “71 Electronic lock is jammed 1. Using the BESST tool update the Display to see if it resolves the problem. 2. Change the display if the problem still occurs, please change the electronic lock.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    Error 81
    Bluetooth module has an error

    “81 Bluetooth module has an error Using the BESST tool, re-update the software onto the display to see if it resolves the problem. If not, Please change the display.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C271-EN.pdf

    A second error scheme
    Codes that mean different things depending on the protocol

    “The battery error codes of 42, 49, 4C only occur when the drive system is equipped with the smart BMS and Bafang CAN communication protocol.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP E162&E163-EN.pdf

    Remedies differ by drive type
    The same code, a different fix on a hub and on a mid drive

    “Code Cause Troubleshooting Hub Motor System Mid Motor System 21 Speed sensor abnormal”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP E162&E163-EN.pdf

    Manuals referring to a missing appendix
    Two manuals refer to an appendix they do not contain

    Unconfirmed

    “See Appendix A for the detailed error code list.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C020-EN.pdf

    How a fault is shown
    Codes flash at 1 Hz; the last ten are stored

    “The ebike system's parts are automatically monitored in real time. If a part is abnormal, the corresponding error code is displayed on the HMI. The display flashes the code at a frequency of 1 Hz.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C020-EN.pdf

    How the remedies are ordered
    Steps are ordered by likelihood, not certainty

    “The troubleshooting methods in the list are listed in order according to the fault probability and the operability of the related parts. In practice, dealers can adjust the order based on the existing tools and spare parts.”

    Source: bafang-e.com/uploaded/manual/BF-DM-C-DP C020-EN.pdf

    Batteries

    Motors

    • BBSHDMid-drive

      1,764 W · 160 N.m

    • FM G370.250.DFront hub

      250 W · 36 / 43 V

    • FM G370.250.VFront hub

      250 W · 36 / 43 V

    • H305Rear hub

      250 W or 350 W, each at 36 V or 48 V · 55 N.m · 40 N.m on the 250 W versions, 50 N.m on the…

    • H400Front hub

      250 W · 50 N.m · 36 V

    • H405Rear hub

      55 , 60 N.m

    • H410Rear hub

      250 W · 45 N.m · 35 N.m

    • H550Rear hub

      250, 500, 750 or 1000 W · 60 , 70 , 85 , 100 N.m · 48 or 48 / 52 V

    • H550WRear hub

      750 or 1000 W · 85 , 100 N.m · 48 / 52 V

    • H560Rear hub

      750 W on two of the three versions, 500 W on… · 75 , 85 N.m · 70 N.m at most, and 60 N.m on two of the…

    • H600Rear hub

      250 W · 36 / 43 V

    • H650Rear hub

      2000 / 3000 W · 160 , 200 N.m · 60 / 72 V

    • H700Rear hub

      250 W · 50 N.m · 40N.m

    • H710Rear hub

      250, 350 W · 55 or 60 Nm · 36 / 48 or 48 V

    • H720Rear hub

      250, 750 or 1000 W · 36 / 48 or 48 / 52 V

    • H730Rear hub

      250 W · 50 N.m · 36 V

    • M200Mid-drive

      250 W · 36 / 43 V

    • M210Mid-drive

      250 W · 650 W · 80 N.m

    • M215Mid-drive

      250 W · 80 Nm · 36 / 48 V

    • M300Mid-drive

      250 W · 36 / 43 / 48 V

    • M315Mid-drive

      500 W · 100 Nm · 36 / 48 V

    • M410Mid-drive

      250 W · 800 W · 36 / 43 / 48 V

    • M420Mid-drive

      250 W · 36 / 43 / 48 V

    • M430Mid-drive

      1000 or 1200 W · 120 , 150 N.m · 36 or 48 V

    • M510Mid-drive

      250 W · 850 W · 110 N.m

    • M560Mid-drive

      950 / 1220 W · 140 / 150 N.m · 130 N.m at 500 W, 140 N.m at 750 W

    • M600Mid-drive

      500 W · 36 / 43 / 48 V

    • M615Mid-drive

      750, 1000 W · 160 Nm · 48 V

    • M620Mid-drive

      750 / 1000 / 1300 W · 48 / 52 V

    • M800Mid-drive

      200 W · 36 / 43 V

    • M820Mid-drive

      250 W · 530 W · 80 N.m

    • MM G360.350.CMid-drive

      350 W · 36 / 43 / 48 V

    • RM G040.DCRear hub

      250 / 350 / 500 W · 36 / 43 / 48 V

    • RM G050.250.DRear hub

      250W · 36V

    • RM G062.DRear hub

      750 / 1000 W · 48 V

    • RM G062.DCRear hub

      750 / 1000 W · 48 V

    • RM G070.DRear hub

      250 / 350 / 500 W · 36 / 43 / 48 V

    • RM G360.500.DCRear hub

      500W · 50 N.m

    Controllers

    Displays