I have a 4x100 ah SuperPack Lithium bank on my boat that suddenly stopped working. They refuse to take a charge. The Cerbo shows them at 45% shortly before they turned off, there were no big loads at the time they were running other than the wind generator
I have pulled one of my starter battery’s to confirm the 12v system is still functional. I unfortunately don’t have a multimeter on board… oops.
When I run the engine the system doesn’t seem to charge…. I’m at a loss.
Any help is appreciated.
The batteries have an internal switch that will disconnect the battery from your system in the event of over discharge, over charge, low or high temperature.
Ensure that none of the events are currently in place. You would need a multi meter to measure for over discharge and over charge. You can try to disconnect all 4 batteries and then reconnect only one battery at a time and see if they will take charge.
I’ve tried this so far no luck. Really kicking myself about leaving the multi meter at the marina
It looks like the cerbo flagged a low battery alarm right before the shut down my solar is running now but I’m not sure if the battery is accepting a charge yet. I’m just waiting for things to open up around here so I can buy a multimeter
My system is basically back up 3 of the 4 batteries we’re under 12 volts but one was fully charged….
What would cause this ?
Difficult to say. I think all 4 must have been low, only that one of them came back out of the low voltage threshold than the other 3.
As said earlier:
Without a wiring diagram and further infos about your system it seems to be almost impossible to further assist in tracking down the problem.
