Diagnostic tool
We have a tool available that simply plugs into your battery and gives all relevant info to diagnose a battery.
Battery Pinout
Fuse replacements
Type of component:
SFK-4045A
You can buy these here:
https://aliexpress.com/item/1005006642924987.html
Procedure:
1: Disconnect VP cable.
2: Disconnect the balancing connector.
3: Replace the fuse
4: Reconnect VP.
5: Do SWD reset 2 times in 3-5 seconds – See: Resetting the battery section below.
6: Wait 2 minutes for the CPU to boot up.
7: Reconnect the balancing connector.
8: Test it in the bike, or by grounding the DET pin. If the battery charges on the CH+ and CH- you’re also good.
Modbus tool for Arduino
Resetting the battery after fuse replacement
Short the RESET and GND pins together after reconnecting to reset the MCU. Sometimes this only works if the battery voltage is around 35-37 volt. They are on the battery PCB:
