The Bafang CR A101.C is an e-bike controller with CAN communication, an operating range of -20℃ to 60℃, a 250 or 350 W rating and a nominal 36 or 48 V.
Last updated: 6 September 2026
What we found
- Published as 36 / 48 V · 250 or 350 W · 17 / 14 or 20 / 16 A.
- 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.
Motor and performance
- Continuous rated power
- 250 or 350 W
- Current limit
- 17 / 14 or 20 / 16 A
- Rated input power
- 350W
- Rated output power
- 250W
- Rated current
- 10A
- Walk-assist speed
- 5 km/h
- Throttle
- Optional
- Rated voltage
- 36 / 48 V
- Operating temperature
- -20℃ to 60℃
“Rated Power (W) 250 , 350”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
“Current Limit (A) 17 / 14 , 20 / 16”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
“Rated Input Power: 350W”
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
“Rated Output Power: 250W”
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
“Rated Current: 10A”
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
“Walk Assistance (km/h) 5”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
“Throttle Optional”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
“Nominal Voltage (Vdc) 36 / 48 , 36 / 48”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
“Power Supply: 36V DC”
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
“Operating Temperature: -20℃ to 60℃”
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
Battery and charging
- Low-voltage cutoff
- 32 / 41 V
“Low Voltage Protection(Vdc) 32 / 41 , 32 / 41”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
“Undervoltage Protection: 32V”
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
Brakes and safety
- Brake sensor
- Optional
“E-Brake Optional”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
Frame and components
- Lighting it can drive
- Headlight and taillight (6V3W/12V6W)
- Most lighting power it can supply
- 6 / 6 (max) 12 / 12 (max) 48 / 48 (max)
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
“Light Drive Capacity (Vdc/W) 6 / 6 (max) 12 / 12 (max) 48 / 48 (max)”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
Size and fit
- Overall dimensions
- 78.5 × 47 × 29 mm — Bafang's A, B and C
“A (mm) 78.5 , B (mm) 47 , C (mm) 29”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
Compatibility
- Communication protocol
- CAN
- Motor connector
- M9.1 — nine pins
- How it talks to the battery
- CAN, to the pack's BMS
- Which side of each join is male
- The female connector of the communication cable from the battery BMS
“Com. Protocol CAN”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
“Motor M9.1 Thick yellow Phase V Thick green Phase U Thick blue Phase W White Speed hall Red 5V Black GND Green Hall U Yellow Hall V Blue Hall W”
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
“Battery communication 1 Yellow CAN L 2 Red 5V 3 Green CAN H 4 Null Plug”
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
“A. The female connector of the communication cable from the battery BMS a. The male connector of the communication cable from the controller B. The male connector (negative) from the battery b. The female connector (negative) from the controller C. The female connector (positive) from the battery c. The male connector (positive) from the controller”
Source: bafang-e.com/uploaded/manual/BF-DM-C-CR A101-EN.pdf
Certification claims
- Certification claimed by the manufacturer
- IP X6 / CE / UL2849
“Tests & Certifications IP X6 / CE / UL2849”
Source: bafang-e.com/Uploaded/Labels/BAFANG_Workbook_OEM_2027_EN.pdf
Models documented with this controller
No model has been matched to this controller yet in the records we hold. That is a statement about our research, not about which bikes use it — and controllers are the part manufacturers name least often.