MOS Reference: Lithium iron phosphate (LiFePO4) rechargeable battery for solar storage, RV, marine, and off-grid applications. Superior cycle life of 2000-5000 charge cycles compared to 300-500 for lead-acid. Integrated BMS provides cell balancing, over-charge/discharge protection, and short-circuit safety. Flat discharge curve maintains stable voltage throughout capacity range. Drop-in replacement for lead-acid with 50% weight savings.