LiTime 12.8V 320Ah Mini LiFePO4 Battery Built-in 200A BMS, Bluetooth 5.0, IP65 Waterproof, 4P4S Expandable, Max. 4.09kWh Energy, Perfect for RV, Trolling Motors, Marine

Space-Saving Powerhouse: 1/3 the size of standard 12V 300Ah batteries (32% smaller footprint!) but with 20AH HIGHER capacity. Ideal for RVs, campers, and marine vessels where every inch matters – fits seamlessly into tight battery compartments without sacrificing energy storage. Compact Yet Mighty: From weekend RV trips to off-grid cabins and emergency home power outages, this battery powers refrigerators, lights, and appliances with 2560W peak power. Lightweight design (compared to lead-acid) makes installation a breeze – the ultimate all-in-one solution for modern energy needs. Smart Bluetooth 5.0 Integration: Monitor voltage, SOC (State of Charge), and real-time performance via the free app – no wiring or extra hardware needed. Turn the battery on/off remotely during trips or check levels from your couch – perfect for off-grid living or preventing unexpected power drains. Tough Enough for Any Environment: IP65 rating withstands rain, sea spray, and dusty job sites – ideal for coastal homes, fishing boats, or desert campsites. Built-in -20℃ cold weather protection ensures reliable starts in Alaska winters or Canadian cabins – no performance drop-off in freezing conditions. Scalable & Self-Protective: Expand to 4P4S for 51.2V 1280Ah systems (perfect for large home backup setups). Automatic overload/short circuit protection resets instantly – no fuses to replace or breakers to trip. Worry-free operation for DIY energy projects. 5 Year Warranty: As the #1 LiFePO4 lithium battery brand on Walmart, LiTime LiFePO4 batteries come with a 5-year warranty! We also provide professional technical support and online customer service with fast feedback within 24 hours.