Got low battery buzz at 65%

deeph

Hello,

I got a second hand Onewheel Pint and looks like charge normally. But when using it, I only got 35% usable battery. At 65% I got low battery buzz.

Does this mean my board has battery malfunction? Or else maybe?

Please let me know.

Thanks

deeph

Seems I didn't charge it correctly. I just looking at Onwheel app when 100% full charge I just disconnected it but the charger still on Red lit.

After a full charge (Green led on charger showed up), I can get drain my battery until 50% now.

So all good now!

Thanks

Lia

@deeph Congrats on getting more range back :)
Sometimes with batteries like this the cells can get out of balance. If you leave it on charge a little longer like a few hours or a day even it gives the BMS time to cycle the cells so they're all similarly balanced. I wouldn't recommend doing this a lot as keeping it fully charged for long times degrades lithium batteries.

If you use the OWCE app you can see the 15 cells and if they're all within like 0.1v of eachother. If they're all the same when it stops balancing then the battery is just worn out. However if you see just a few really low and others with power still then it likely needs a longer balance charge.

deeph

@lia Have installed OWCE, nice to have battery info, but my cells not showing up per cell voltages. I'm on stock firmware. Does it need other firmware for that?

Lia

@deeph Oh this might be a later model board where they removed that data :/
Give it a balance charge overnight and see if it improves much. Over time of leaving it a little longer after you see green you may claw back some range.