kiltedcelt
100 W
I have a 36v battery (Dolphin case from em3ev), that is about three years old. I haven't used it in over a year and a half but I thought I'd been recharging it regularly enough to keep some life in it. I thought I'd just give it a recharge but the charger light is showing green, and while the LED power light on the side of the battery (that push button on/off switch), lights up, the push-button battery gauge doesn't light up and when I throw a multimeter on it, it only shows 3.7 volts. Have I killed this battery? Is there any way, or some specific charger I could use to bring it back? I wasn't planning on using it in an e-bike but was thinking it could power a large power bank kind of thing I was planning making for use for disaster/power outage situations or powering a small sound system, etc. Is this thing just a giant toxic paperweight now?