diy solar

diy solar

SOC AGM 52%

Based upon your other post, all this problem is due to deeply over discharging your AGM battery. Adjusting charge voltage parameters will mean nothing if you’re damaging your battery by discharging much more than 50% each day. One guy posted on your other thread that you might be discharging as much as 90%, which is murder for an AGM or other lead acid battery. You need twice as much battery for a lead acid system as you do with lithium.

I think your problems are due to your battery no longer has 100Ah of capacity, I’m guessing here it might be more like 10 or 20Ah due to the damage that’s been done. That’s why your battery goes up and down to 100% throughout the day.
 
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