I was given an old ex-rental ES2. It was a mess and was obviously used with an external battery without the hose clamp mod, as the connector was all scorched. I was given it without the external battery, and managed to clean it up, fix it and resurrect the internal battery and BMS. It seems in good ...

What battery are you running?

I'm doing a thing. https://i.imgur.com/vwF35EVl.jpg The final goal is to make an all-pneumatic RWD ES/365 hybrid with a front drum brake and an independent battery fully external to the stem. I've progressed since that picture and it's now all built up, but I can't get the motor to work. I've wired ...

While riding it, all of a sudden my ES2 slowed down and flashed error 19, then refused to work at all. M365 Tools showed that one cell group was down to 2 volts and change, and another was at - get this - 6.039 volts (!). I got home, took it all apart - for the nth time - and checked the battery, wh...