Bafang BT F290.B522.C
The Bafang BT F290.B522.C is a battery pack with a capacity of 14.5 Ah, 522 Wh of energy and an expected life of 600 cycles with 70% capacity remaining.
Last updated: 6 September 2026
What we found
- Published as 14.5 Ah · 522 Wh.
- 9 specifications are published for it, each with the source it was read from.
- 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 by the document's own method
43 V
“Ratings: 43V,14.5Ah,522W”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.pdf
- Rated capacity
- 14.5 Ah
- Battery energy
- 522 Wh
- Expected cycle life
- 600 cycles with 70% capacity remaining
- Least capacity declared
- At least 14 Ah
- Power when nearly empty and nearly full
- 104 W at 20% SOC, 412 W at 80% SOC
- Internal resistance
- No more than 150 mΩ
- Charges to
- Sources disagree
50.4V, cutting off at 200 mA
“Charge:Constant Current Constant Voltage mode, 50.4V,3 A, Cut off at 200 mA”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.pdf
42 V, by the capacity test in the same document
“Step 2: fully charge the battery with constant current 3 A to 42V, then charge with constant voltage 42 V until charge current decrease to 0.2A.”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.pdf
- Treated as empty at
- 27 V
- Power to energy ratio
- 193%
Disputed
“At 20% SOC (20% and 80%), The Power obtained by method: present discharge current*36V”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.pdf
The same document also states
“Ratings: 43V,14.5Ah,522W”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.pdf
“Ratings: 43V,14.5Ah,522W”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.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 F290.B522.C.pdf
“Rated capacity(Ah) 14Ah or above”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.pdf
“Power(W) 104 W at 20% SOC, 412 W at 80% SOC”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.pdf
“Internal resistance (mΩ) ≤150 mΩ”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.pdf
“Discharged: Constant Current mode, 3 A, Cutoff at 27 V”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.pdf
“412 W at 80% SOC. 193%”
Source: bafang-e.com/Uploaded/Labels/BT F290.B522.C.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 F290.B522.C.pdf
Bikes — none listed
No sourced compatibility evidence is on file for this battery yet.