How to replace lead-acid batteries cheaply
240KW/400KW industrial rooftop - commercial rooftop - home rooftop, solar power generation system.
The lead acid battery may last you a month or 5 more years. If the temperature is somewhat controlled (not 0 degrees and not in the sun ) and your current draw is not more than a few amps, a lifepo4 battery will charge to about 85-95% (great for longevity) off of lead acid battery chargers and last you a decade or more with a good balancing BMS.