Left it charging for around 8 hours and when I checked on it 3 of the 4 was fully charge but one was at 25 percent. I watched it for a few minutes and it jump to 100 percent charge only to go back to 25 percent again any one know what's going on I'm currently looking at the manual and see nothing mention

Can you switch one of the 3 banks that have completed charging over to the battery that hasn't charged? Maybe that one bank is bad. Or maybe it's the battery.

 

I have a 3-bank MK PC fwiw.

By bank you mean maybe that one charging side on the unit doesn’t work?

On 4/19/2021 at 6:46 AM, Johnbt said:

Can you switch one of the 3 banks that have completed charging over to the battery that hasn't charged? Maybe that one bank is bad. Or maybe it's the battery.

 

I have a 3-bank MK PC fwiw.

^This

switch the charging wires with another battery.

If it charges it’s the charger.

If it doesn’t it’s the battery