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Attention
(1)All smart bms support xiaoxiangElectric App IOS and Android version to convert li-ion and lifepo4 parameters.
(2)All smart bms has BT and UART function.
(3)Smart BMS accessories needs buy separately:https://www.aliexpress.com/item/3256804529002284.html
(4)All UART communication can be converted to Canbus communication if needed,
only need to buy a canbus module converter separately.
(5)APP Manual and BMS Specification:pls contact customer service.
Circuit
Initial Replacement BMS
Bluetooth BMS
Capacity Test
Capacity | Expected | Actual | Percentage |
|---|---|---|---|
| Ah | 9 Ah | 9.24 Ah | 103% |
| Wh | 324 Wh | 334 Wh | 103% |
...
Testing the cells showed that they were within spec.
| Cell 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|
| 3.957 | 3.959 | 3.966 | 3.968 | 3.975 | 3.969 | 3.979 | 3.985 | 3.977 | 3.988 |
I decided to disassemble the battery and test every cell. They appear to be fine. Capacity tests results were good.
...
Ordered a new Smart BMS with Bluetooth which might help diagnose future issues.
See Bluetooth BMS.
References
| Reference | URL |
|---|---|
| F4W Peak 350W electric bike | https://www.f4wbikes.com/#!peak/cee5 |
| F4W (Fast4ward) Peak 350W Electric Bike Review | https://electricbikereport.com/f4w-fast4ward-peak-350w-electric-bike-review/ |
| Details | https://www.greenfinder-mobility.com/e-bikes/brand/fast4ward/#/product_preview/1375 |
| Review | https://www.youtube.com/watch?v=1bcUQ2ykW_M |
| How to install a Brushless DC Controller on Ebike: The missing manual | https://www.youtube.com/watch?v=PuwnFMHHtaE |
| Increase speed of ebike: Swagtron EB5 controller upgrade | https://www.youtube.com/watch?v=QbsPzjG-QpA |