changeissimple
100 W
- Joined
- Oct 18, 2017
- Messages
- 104
Hoping someone has experienced something similar to the trouble I am having with a 72v / 60AH battery from Modi Battery. They use lithium Ion prismatic cells. I bought the battery NEW in August, connected it to the motorbike, and it worked. It charged, And worked after several plug in/unplugs repeatedly as I got the battery mounted over the course of a week - 10 days. The battery was fully working. Right when I was finally ready for a test ride, I hooked everything back up and the battery was unresponsive. It would not charge. I tried other fixes like discharging with a lightbulb, and hair dryer. No luck. I figured the BMS failed. I replaced the BMS and still nothing. While the new BMS is connected the Discharge and Charge connectors measure 77.5V. I measured the battery without the BMS attached and it read 78.6. I tested all 20 cells and all are reading 3.9/4volts (add up to 78.6) when tested off the series connections for the BMS (when NOT plugged in to the BMS). I didn't do anything to activate the new BMS and unsure if I need to. All i did was replace and plug all the wires in as they were. I feel as though i am missing something, or something stupid is happening. Any pointers. ideas, help would be greatly appreciated.