Hey Esk8, I have been working on my build since mid january, picking all of my parts, and generally doing as much research as I could. Since that time, I have built a decent foundation of all the info needed to build a quality and long lasting board. Despite this, I have had nothing but trouble with my build and honestly am starting to lose hope that I will ever get it to work.
My board has a TB sensored motor and Vesc along with a 10s bms from bestech and 5 2s batteries in series, similar to the build that @Namasaki made. Since the very beginning, I have had nothing but trouble with my BMS.
After I first put in my BMS and finished the build, it worked perfectly, both in speed and reliability. After shutting it down and putting it away while I went to work, I came back to find that it no longer worked. Thinking it might have just been a defective BMS, I decided to switch it out and install the second one that came with my order. I had the same problem, after a short time of it working and then leaving it for a bit, it no longer worked. The worst part of this is that It wont let me charge my batteries either, with the charger just turning on and off over and over again when plugged in.
Over the course of the past month and a half, I have been talking to Lucy at Bestech trying to solve my problem and am still no closer at figuring it out. During this time, the voltage in my batteries have dropped significantly and I am now worried that I have to buy new batteries on top of a new BMS. Do any of you have suggestions on how I should proceed? Im really lost at the moment. And this is how I wired my system.
- soldered all batteries together into series 2)soldered the negative lead of the batteries to b-.
- soldered a connection for the positive battery lead to connect to the load.
- soldered p- to the negative lead of the load.
- spliced a wire onto the main positive wire and connected this to the positive terminal of the charging port.
- soldered a wire to the c- and connected this to the negative terminal of the charging port.
- soldered switch to the two switch wires.
- connected balance wires in proper order
- Connected the battery positive to the positive lead of the load.
- Flipped switch.