Experience the next generation of battery technology with these innovative USB rechargeable D batteries. Boasting a robust 12000mWh capacity and 1.5V output, these lithium-ion batteries deliver consistent power through 1200 charging cycles. The convenient USB Type-C charging capability means no more disposable batteries – simply plug in and recharge. Built-in overcharge protection helps maintain battery longevity and safety. Each battery maintains steady voltage throughout its discharge cycle, ensuring reliable performance in your devices. The included charging cable makes powering up quick and straightforward. This pack of two batteries offers a practical solution for high-drain devices, combining the convenience of rechargeability with dependable power output. Perfect for flashlights, radios, toys, and other D-cell powered devices.