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diy solar

Battery soc 0% wont charge from solar

TheGreatHurlyBurly

New Member
Joined
Sep 6, 2023
Messages
13
Location
Oklahoma
So I'm a newbie and I accidentally left my inverter on over night last night while the battery was already in a low charge state ~22%.

Now my battery's SOC is 0% and wont charge. Current voltage is stuck at 49.88v. How do I get the inverter to charge the battery again?

Inverter is a sungoldpower SP6548, battery is a 48v 5.12kwh lithium powerwall. https://sungoldpower.com/collection...m-battery-4-x-370-watts-solar-panels-sgm-655m
 
First off, 49.88V shouldnt be 0% 0 should be 40V but reguardless, you need to tic the bms charge button, or reset the bms.
Since you are getting 49.88, it should be charging...
 
When the battery is indeed bms protected, I was once advised to hook up a solar panel on the battery directly to wake it up. Maybe you can try this...But tbh I am not 100% sure it will work. Just a possible way to save the battery.
 
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