I am having problems with my yard works batteries, and I hoping the someone could share some insight with me.
My YW batteries are effectivelty useless because they keep triping at the slightest current draw. They worked well for about a dozen discharge/recharge cycles, but now I am not able to use them at all. If I'm already going 10kmh from peddaling, and I try to add 1/4 throttle, the batteries trip immediately. So far I've confirmed that my charger is charging them back up to the 20V range, so I am fairly certain that it is the high current cutoff that is causing them to trip, yet, it doesn't make senses because I am certain that they are tripping at a fairly low current draw. Plus, on my first dozen trips with these batteries, they worked flawlessly and the worked awesome!
I haven't had the time to pull them apart to troubleshoot but here's my best guess....I think I read somewhere that the BMS board on these batteries really sucks. I think that I read that the 5 banks don't get balanced at the end of the charge cycle......I think it's possible that 12 uses is enough to cause the banks to go out of balance - so even at low current demand, one or several of the banks are delivering too much current and its causing the entire BMS to cut out....
anyways, I plan on troubleshooting them this week, but would like to hear from some of you guys that are using the yard works batteries. Can you share your experiences with us on this thread?