Smart Bluetooth 5.0: Monitor real-time battery status via LiTime APP. Enables smart control and better power management—simple, convenient, full oversight at your fingertips. RV-Specific Design: Tailored to fit Group 27 compartments in Brinkley Z 2900, Four Winds 22E, Forest River Forester. Ensures a perfect, hassle-free fit for your RV. Ideal for RVs, kayaks, and marine use, easy install, zero extra cost. 20+ BMS Protections: Includes low-temp cut-off, over-charge/discharge, over-current. Adds 30s overload recovery, salt-spray/damp resistance—guarantees safe, reliable performance. Ultra-Long Lifespan: 4,000+ cycles at 100% DOD—lasts 10x longer than lead-acid. Eco-friendly, consistent performance for long-term reliable power. Expandable Power: Connect up to 16 batteries for 20.48kWh energy and 20.48kW output. Perfect for RVs, trolling motors, and home backup. Grow your system as your needs do! Tips: Charge with lithium-activation or MPPT charger to activate Bluetooth after first receipt or switching off. Not suitable for starting batteries, golf cart batteries, or jacks. Power your RV trips, marine adventures, solar setups, and off-grid living with the LiTime 12V 100Ah Group 27 Bluetooth LiFePO4 Battery. Built with premium EV-grade cells and a self-developed 100A BMS, it delivers reliable performance in harsh conditions, outlasting traditional lead-acid batteries. Fits standard Group 27 compartments – easy drop-in replacement for RVs (Brinkley Z 2900, Four Winds 22E, Forest River Forester), kayaks, fishing boats, and trailers, no mods needed. Connect via LiTime APP (Bluetooth 5.0) to monitor real-time voltage, current, charge state, and temp, plus set alerts for low power or overheating. Safety-first design: 20+ BMS protections (overload with 30s auto-recovery, short-circuit, over-voltage, etc.), moisture/salt-spray resistance, and pre-charge to guard electronics. IP65 waterproof/dustproof and low-temp cut-off (stops charging below freezing) work year-round, from rainy camping to winter off-grid use. Long-term value: 4000+ deep cycles (100% DOD), 10-year lifespan, and 22.5lbs lightweight build (no maintenance). Scale up via 4P4S connections (up to 51.2V 400Ah/20.48kWh) for home backup, large solar systems, or heavy-duty trolling motors. Ideal for RVers, anglers, solar users, and homeowners. Specs: 12V, 100Ah, 1280Wh, Group 27, Bluetooth, IP65. Upgrade to LiTime – no more dead batteries ruining your adventures.