Help with BMS Battery Controller

Mattjenkins1990

Pedelecer
May 6, 2015
52
1
33
Hi All,

I have a controller from BMS battery as part of the 09 bottle kit but the controller has stopped working recently after being golden for 4+ years, the system powers on but does not show the battery remaining or provide any power. I have opened it up and disassembled it from the housing and can see there is a resistor that has worked loose / sheared somewhere.

For the life of me, I cannot figure out where it should be seated. The controller is a sine wave integrated controller for 09 bottles similar to this:

https://bmsbattery.com/home/1069-18294-sine-wave-controller-for-09-case.html#/137-color-black/497-voltage-36v

Image of the resistor on the underside of the BMS unit attached:

Does anyone have any experience of this, I have emailed BMS Battery but given they are based in China i don't expect a response anytime soon.

Any help would be massively appreciated, I don't want to throw this one away and start again if I can help it.

Many Thanks in adavance.

Matt.
 

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Mattjenkins1990

Pedelecer
May 6, 2015
52
1
33
found it. Incase anyone is wondering we can see it on the top side of the controller in this article: