An Electric Scooter Community on a Mission to Stamp out Transportation Mediocrity.

Store the power! Electric scooter battery and charging discussions go here.
By Skupik
#54229
Hi
I got some old Voi Tank/Ninebot batteries.
I would like to know is it possible to wake them up and use built-in BMS, or should I change it?

Pushing the reset button doesn’t change much.
LED starts blinking either red or blue, but no voltage is present.
Image
Image
Image
Last edited by Skupik on Sun Aug 08, 2021 4:13 pm, edited 1 time in total.
By koskvold
#54251
Skupik wrote:
Sun Aug 08, 2021 4:12 pm
Yeah, it's fully charged. Around 40V on the cells. But no significant voltage on the output. Only 5-7V present.
U have to st-link the battery or uart if u have a scooter. the voi bms i pretty good so no plug and play!
By tester4321
#58197
What I did on mine is there’s a B+ and P+ and B- P- connections . U tap right into both Bs connections to get the power and use the charging port to charge. I assumed P is for protections. Once I did that then put it under load, it didn’t shut off. So I’m able to use stock bms. My battery came from Spin xrental got from fleabay

As this was a rental version whos overstock was […]

Any one got any info on beryl bikes I seen a few[…]

LH/ TF-100 Style Display.

Hi I recently converted a Bird Zero to a personal […]

How do you operate dash without button? I have[…]