Hello, I have a problem of suddenly increasing charing current in absorption mode.
Setup : 2x 440w Solarpanel, 2x LiFepo4 25.6V 100Ah, Facho 3000W inverter.
Szenario, Inverter just delivering 30W for a Monitor. Full sun on panel, Akku goes into Absorption mode ~28.4V. Loading current went down to 3.4A and then for no reason the current goes up to 16.5A which leads to higher akku voltage of 28.48 or so. Then the inverter goes out for just 2 seconds, assume due to higher voltage.
I have no idea why this happen, the load on batterie was same no increase.
My assumtion the MPPT has mailfunction.
Setting in MPPT 135/50 is on standard via poti pos 7.
Any suggestion ?
Best Regards