My setup: 3x250W panels, epever tracer 4215BN mppt controller (40A), 4x DC12-160 AGM batteries (connected in parallel), inverter connected to batter pack.
Location: at summer cabin, so mostly weekend warrior use.
Battery specs: cycle use 14.6-14.8V (25C), standby use 13.6-13.8V(25C)
Problem...