How many batteries are high voltage lead-acid batteries
240KW/400KW industrial rooftop - commercial rooftop - home rooftop, solar power generation system.
My standby charge for a 20Ah sealed lead-acid battery starts when battery voltage reaches 12.8V, after which I charge with constant voltage at 13.65V until charge current reduces to 50 mA. Here is my problem: Initially the discharge/charge cycle took some 9h, pushing some 0.7 Ah through the battery. This cycle time has gradually become shorter ...