Charging batteries outside the scooter?

Posts: 2
Joined: Mon Nov 25, 2019 9:21 am

Charging batteries outside the scooter?

Postby Johhnyvanther Wed Dec 18, 2019 10:28 pm

Hey guys I've got a few batteries here I've been trying to charge outside of the scooter.

Anyone know how this is done?
The charge wires won't accept power, I presume this is because it has to talk to the esc?

I successfully charged one down the main battery pins but I believe the BMS doesn't do a whole lot when you do it this way, I had to set a low current shutoff on the power supply and is a bit jank.

Tldr: how do I get the two charge pins on internal or external battery to accept a charge current?
Posts: 8
Joined: Sun Feb 23, 2020 7:54 pm

Re: Charging batteries outside the scooter?

Postby jrrdoyle Mon Apr 27, 2020 8:46 pm

Hey man, I figured it out and was able to use the external battery on my electric skateboard and charge it separately. You have to downgrade the bms to BMS122. It seems to have less restrictions. Use Ninebot Flasher in Windows 10 to change the external BMS. (Has to be on scooter to change FW)

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