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  1. O

    Brand new battery bms problem

    Thanks, I've tried to do a bit of research into battery testing after a few days away and again got quickly confused, so am back to humbly ask for help please! It seems there are different methods of doing a BMS reset - i've already tried unplugging the BMS, plugging in the charger then...
  2. O

    Brand new battery bms problem

    1. The battery is mounted inside the frame, as putting it under the seat post means raising the seat by several inches so my feet no longer touch the ground! I did used to worry about the old one as it got a bit rattly, but somehow clung on for 7+ years. The new one weighs about twice as...
  3. O

    Brand new battery bms problem

    It's not the battery fuse, I've checked it and swapped with the one in the old working battery, which still works with both fuses. Wouldn't doing the aforementioned bms reset get it out of protect mode if that was the problem?
  4. O

    Brand new battery bms problem

    Thanks for the intelligent replies, and sorry for the delay, didn't get a notification! Right, before I post all the technical details I'll explain what happened. The old 24v battery lasted about 7 years, but kept conking out when going uphill - it would come back after a minute, or if I...
  5. O

    Brand new battery bms problem

    Hi, here's another plea for help identifying the bms in a battery! Recently bought this 48v frog battery from ebay, charged it up all good, but think I've buggered the bms as it's not charging anymore (light on charger stays green when plugged in), and pressing the test button on battery does...
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