jaiong Posted September 28, 2018 Share Posted September 28, 2018 (edited) V5f doesn't charge or turn on. With shell removed and tested, battery indicates zero voltage (72v original, 84v charger). On charger connect, registers 24v for 5 seconds, then drops back to zero. Battery, bms, charger or sleep problem? https://youtu.be/JK-phwb74-4 Another Li-po 48V scooter battery registers 24v, when lamp connected flickers on/off at maybe 10 blocks/second. Problem/solution? Edited September 28, 2018 by jaiong Grammar correction Quote Link to comment Share on other sites More sharing options...
Chriull Posted September 28, 2018 Share Posted September 28, 2018 (edited) 1 hour ago, jaiong said: V5f doesn't charge or turn on. With shell removed and tested, battery indicates zero voltage (72v original, 84v charger). On charger connect, registers 24v for 5 seconds, then drops back to zero. Battery, bms, charger or sleep problem? Could be quite any combination of the above mentioned - most presumably is the battery (some cells) dead. Anyhow you should be very cautious with this battery pack! Dead cells can be dangerous. Quote https://youtu.be/JK-phwb74-4 Another Li-po 48V scooter battery registers 24v, when lamp connected flickers on/off at maybe 10 blocks/second. Same as above. Quote Problem/solution? Replace the battery pack and check your chargers. Ps.: You should have started a new topic - this here is an almost not related, "dead" topic. PPS.: ... so i split your post into a new topic - i hope you consent to the newly choosen title - if not, i can gladly change it. Edited September 28, 2018 by Chriull Quote Link to comment Share on other sites More sharing options...
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