Wattcycle 12V 314Ah Mini LiFePO4 Lithium Battery, 200A Smart BMS, 3A Active Balancer, 4-in-1 Smart Switch, Built-in Bluetooth APP, 4.01kWh for RV, Solar, Home & Off-Grid Power

Features

• All-Season PerformanceEnhanced system activates automatically below 4F for safe winter charging in RV, marine, and off-grid applications. Combined with low-temperature cutoff and 149F high-temp protection, it operates steadily from 4F to 140Fready for both freezing mornings and extreme summer heat.
• 4.01kWh High-Density Mini PowerProvides 4019Wh of usable energy in a compact 15.127.649.76 in enclosure40% smaller and 66% lighter than traditional lead-acid banks. With 142Wh/L energy density, it supports RV air conditioners, microwaves, heaters, and home backup loads. Expandable up to 4S4P for a 64.3kWh energy system.
• EV-Grade Cells + 3A Active BalancingBuilt with automotive-grade LiFePO prismatic cells and integrated 3A active balancing (0.01V precision) to continuously equalize voltage differences. This reduces cell strain, improves efficiency, and extends overall lifespan by up to 50% compared to passive-balancing batteries, delivering 6,000+ cycles at 80% DOD.
• 200A Smart BMS + 4-in-1 Control SwitchThe 200A Smart BMS supports 220A 10-second peak discharge, easily powering 2000W+ appliances. The integrated 4-in-1 Smart Switch enables one-key start/stop (APP supported), emergency cutoff, sleep activation, and low-consumption standby for enhanced safety and smarter energy control.
• Bluetooth Monitoring & Modular DesignBuilt-in Bluetooth connects to the WattCycle APP for real-time monitoring of SOC, voltage, current, and temperature. The 180L quick-demountable casing allows convenient maintenance and component replacement. Fully certified with UN38.3, CE, FCC, and RoHS for safe home and travel use.