TheBikeMan
New member
Hi All,
We have been fixing and building electric bike batteries for a few years now. I am currently working on one that stopped accepting a charge. Upon inspection, I discovered a tiny circuit board installed in the negative wire between the charging port and the BMS. Here's a photo.
As we have never seen this, we are uncertain as to what it is or what purpose it serves. Any ideas are welcome.
We have been fixing and building electric bike batteries for a few years now. I am currently working on one that stopped accepting a charge. Upon inspection, I discovered a tiny circuit board installed in the negative wire between the charging port and the BMS. Here's a photo.
As we have never seen this, we are uncertain as to what it is or what purpose it serves. Any ideas are welcome.