Troubleshooting ViFly Toothstor Charging Issues with 2S Batteries

Hi, I have a ViFly Toothstor to charge BT3.0 lipos, but it also has standard balance ports. No problems when used to charge BT3.0 batteries. I attempted to charge some 2S batteries via the balance ports, and the toothstor would exhibit strange behaviors like reading cell voltage incorrectly and shutting down unexpectedly. In my troubleshooting, it killed two different USB-C power supplies. Batteries work just fine on my SkyRC chargers.

Does this sound familiar to anyone, I wonder if I'm using the charger incorrectly as I assumed I could charge using the balance ports. Am I using too much current? The back of the unit lists the Balance Current as 0.2A and Max Charging current as 1.5A/port. Does this mean I can only charge at 0.2A when using the balance ports?

https://www.diyfpv.com/catalog/draft-vifly-toothstor-4-port-2s-balance-charger-with-storage-mode

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CarsonGreenlaw

48sett.

I have that charger and you might try hooking it up to a 12-15v barrel power port. I had a similar problem with USB-C, so I use the XT-60 in the field and barrel at home.

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Kyflier

39sett.

I bought a power supply on Amazon that can power up to30vdc 10 amps and I made adapters to xt60 on 2 and I use it to charge 4 batteries 6s at one time

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