ovel2clock Posted June 6, 2022 Share Posted June 6, 2022 With everything not happening for the past 2 years, my Ninebot C+ has unfortunately just been sitting in the garage. Decided to pull it out today and charge it up again. ... however the battery is completely dead. I hooked it up to the charger and the LED just shows green. My understanding is that green = trickle charging. I took it apart and hooked the battery it up to a volt meter and it was showing 24v (ouch). I've got it hooked up and the battery voltage and monitoring. It now shows ~50v. Question: is the battery shot? Worth it to replace the battery or buy new? TIA 1 1 Quote Link to comment Share on other sites More sharing options...
ovel2clock Posted June 6, 2022 Author Share Posted June 6, 2022 Sorry, correction on voltage... Currently at 46v and very slowly appears to be ticking up. Confirmed charger is outputting 61v 1 1 Quote Link to comment Share on other sites More sharing options...
Chriull Posted June 6, 2022 Share Posted June 6, 2022 7 hours ago, ovel2clock said: ... however the battery is completely dead. I hooked it up to the charger and the LED just shows green. My understanding is that green = trickle charging. No - green means the charging current is below some threshold. So it could also not charge at all, like once the BMS cuts off due to bad cell voltages. 7 hours ago, ovel2clock said: I took it apart and hooked the battery it up to a volt meter and it was showing 24v (ouch). I've got it hooked up and the battery voltage and monitoring. It now shows ~50v. The c+ has 15 cells in series. They should have 15*4.2V=63V, or the 61V from the charger. So with this 50 or 46V it seems to have many dead cells... 7 hours ago, ovel2clock said: Question: is the battery shot? Yes. 7 hours ago, ovel2clock said: Worth it to replace the battery or buy new? For the price of a battery you won't find a new wheel But some If you find some nice used newer wheel this could be a much better investment? 1 Quote Link to comment Share on other sites More sharing options...
ovel2clock Posted June 6, 2022 Author Share Posted June 6, 2022 Ok thanks folks! Unfortunately that was my mistake/goof up. On the hunt for a new battery. Nothing really on eBay or Craigslist near me to upgrade to. Quote Link to comment Share on other sites More sharing options...
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