Ostation Ecolast 1.5V 2100mAh AA Smart Rechargeable Lithium-ion Batteries (4 Pack)

Award-Winning Innovation: Proud CES Innovation Awards® 2026 honoree—the world’s first AA rechargeable battery with a battery management system (BMS) built into every cell. Broad Charger Compatibility: Rechargeable with any 1.5V Li-ion battery charger, but engineered to work seamlessly with the Ostation 2 Series chargers for maximum compatibility and performance. Intelligent BMS Monitoring: Built-in smart chip with a thermal sensor monitors and reports battery ID, health status, recharge cycles, and temperature to the Ostation 2 series in real time for precise monitoring and safe, optimized charging. 3150mWh Stable Power: More than 1,000 cycles; High 2100mAh capacity and consistent 1.5V output deliver longer-lasting, reliable power for high-drain devices like security cameras, smart locks, camera flashes, and gaming controllers. 2.5-Hour Fast Charging: Fully recharges in just 2.5 hours using the Ostation 2 Series, reducing downtime and keeping devices ready. Care for Your Devices: Safeguards against short circuits, overcurrent, overcharge, and over-discharge. Dual-layer encapsulation prevents leakage, and gold-plated pure copper positive contacts minimize resistance. Each battery operates reliably from –4°F to 140°F.