2 Pack 12V 100Ah LiFePO4 Batteries, Ultra-Light 21.9lb Each, 15000+ Cycles, 4S4P Expandable, Built-in 100A BMS, Group 24 Lithium Batteries for RV,...

2× POWER, 15,000 CYCLES LASTS 10X LONGER Double your capacity with two Grade A+ LiFePO4 batteries. Each 12.8V 100Ah unit offers up to 15,000 cycles @60% DOD 10X longer lifespan than lead-acid. Thats over 10 years of reliable, maintenance-free energy for RVs, boats, solar homes, and more. DUAL 100A SMART BMS & FULL SAFETY PROTECTION Each battery includes a 100A BMS that protects against overcharge, over-discharge, overcurrent, overvoltage, and short circuit. Plus, with dustproof, moisture-proof, and salt-spray resistance, theyre built to perform in tough and wet conditions. FLEXIBLE 4S4P EXPANSION BUILD UP TO 20.48kWh Start with two, expand up to 4 in series and 4 in parallel for 51.2V 400Ah (20.48kWh). Great for growing power needswhether its for off-grid living, backup systems, or energy-hungry devices. LIGHTWEIGHT & GROUP 24 SIZE EASY DROP-IN Each battery weighs just 21.9 lb50% lighter than lead-acidand fits BCI Group 24 battery boxes. Easy to install i