The Bafang BT F020.B504.C is a battery pack with a 36 V nominal pack, a capacity of 14 Ah, 504 Wh of energy, an expected life of 600 charges, a weight of 2.8 kg and a charge time of 8h with 2A Charger.
Last updated: 6 September 2026
What we found
- Published as 36 V nominal · 14 Ah · 504 Wh.
- 19 specifications are published for it, each with the source it was read from, 2 of them corroborated by a second source.
- No matching recall was found in the records this catalogue holds from 8 regulators.
Assembled from the evidence on this page. Every figure and count below is shown with the source it was read from.
Battery and charging
- Voltage
- 36 V nominal
- Rated capacity
- 14 Ah
- Battery energy
- 504 Wh
- Expected cycle life
- 600 charges
- Minimum capacity at 1C
- 13 Ah
- Charger, as the manual states it
- Customer specified
- Range, under the maker's stated conditions
- Minimum 50km ( 250W motor)
- Charging time
- 8h with 2A Charger
- Least capacity declared
- At least 13 Ah
- Power when nearly empty and nearly full
- 100 W at 20% SOC, 403 W at 80% SOC
- Internal resistance
- No more than 120 mΩ
- Charges to
- 42V, cutting off at 250 mA
- Treated as empty at
- 27 V
- Power to energy ratio
- 166%
- Nominal capacity
- 14 Ah
“Ratings: 36V,14Ah,504W”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“Ratings: 36V,14Ah,504W”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“Ratings: 36V,14Ah,504W”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“8.1.1.3 Battery wear The battery can be charged 600 times. The battery capacity decreases during this time, thus reducing the range of the pedelec.”
Source: bafang-e.com/uploaded/manual/BF-UM-C-BT F020-EN.pdf
“Expected life-time in cycle-life 600 cycles or above 2.5 years using The remaining capacity is above 70% to rated capacity after 600 times charge-discharge cycles is conducted. Test method:20 cycles every month ,2.5 years.”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“Min Capacity 13 Ah (1C Discharge)”
Source: bafang-e.com/uploaded/manual/BF-DM-C-BT F020-EN.pdf
“Charger Customer specified”
Source: bafang-e.com/uploaded/manual/BF-DM-C-BT F020-EN.pdf
“Riding Distance* Minimum 50km ( 250W motor) * Ideal conditions: Flat terrain, approx. 15km/h average speed, no headwind, approx. 20 °C ambient temperature, high-quality bike components, tire tread and pressure with minimal rolling resistance, experienced eBike rider(always shifts gears correctly), additional weight(excluding bike weight)<70kg.”
Source: bafang-e.com/uploaded/manual/BF-DM-C-BT F020-EN.pdf
“Charging time 8h with 2A Charger”
Source: bafang-e.com/uploaded/manual/BF-DM-C-BT F020-EN.pdf
“Rated capacity(Ah) 13Ah or above”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“Power(W) 100 W at 20% SOC, 403 W at 80% SOC”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“Internal resistance (mΩ) ≤120 mΩ”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“Charge:Constant Current Constant Voltage mode, 42V,3 A, Cut off at 250 mA”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“Discharged: Constant Current mode, 3 A, Cutoff at 27 V”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“403 W at 80% SOC. 166%”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
“Nominal Capacity 14 Ah”
Source: bafang-e.com/uploaded/manual/BF-DM-C-BT F020-EN.pdf
Battery care and safety
- Charge to leave it at in storage
charge about (60-80%)
BF-UM-C-BT F020-EN.pdf · retrieved by us 4 September 2026
“8.1.1.2 Battery Storage 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 F020-EN.pdf
35% SOC
BF-DM-C-BT F020-EN.pdf · retrieved by us 4 September 2026
“Storage (At 35% SOC &-10°~35 °C) 6 months”
Source: bafang-e.com/uploaded/manual/BF-DM-C-BT F020-EN.pdf
- How long it can be stored
- 6 months
The maker’s own documents give different figures
“Storage (At 35% SOC &-10°~35 °C) 6 months”
Source: bafang-e.com/uploaded/manual/BF-DM-C-BT F020-EN.pdf
Size and fit
- Weight
- 2.8 kg
- Size, from the dealer manual
- 434*68*76.5mm
“Weight 2.8KG”
Source: bafang-e.com/uploaded/manual/BF-DM-C-BT F020-EN.pdf
“Dimensions (L*W*H) 434*68*76.5mm”
Source: bafang-e.com/uploaded/manual/BF-DM-C-BT F020-EN.pdf
Certification claims
- EU battery declaration
- Declared under the EU Batteries Regulation
“Technical Documentation for Performance and Durability Requirements Light Means of Transport Battery According to Article 10 of (EU) 2023/1542”
Source: bafang-e.com/Uploaded/Labels/BT F020.B504.C.pdf
Product identifiers
The codes printed on the product and its packaging.
- Model code
- BT F020.B504.C
Source: bafang-e.com/en/oem-area/components/component/battery/bt-f020b504c
BT F020.B504.C Specifications Dimensions / Size Specifications Nominal Voltage (Vdc) 36 Energy (Wh) 504 Rated Capacity (Ah) 14 Cell 18650 Charger 2A / 3A Matching Parameter Removing type Down Tests &The manufacturer's own designation for this model, usually printed on the frame or in the manual. It does not change between colours.
Bikes — none listed
No sourced compatibility evidence is on file for this battery yet.