Experience superior power and convenience with the HexGuard CR123A Smart USB-C Rechargeable Battery. Engineered for high-drain devices, this battery delivers a stable 1.5V constant voltage, ensuring peak performance for headlamps, remotes, and controllers. Say goodbye to proprietary chargers; the built-in USB-C port allows for fast, direct charging using the included cable, which can power up to four batteries simultaneously. Built for longevity, this single cell replaces over 1,000 disposable batteries, offering an eco-friendly and cost-effective energy solution. Integrated smart management circuitry provides essential protection against overcharging, overheating, and short-circuiting, guaranteeing safe and reliable operation. This high-performance battery is designed for durability and long-term use in demanding electronic devices. Product Summary: HexGuard smart rechargeable CR123A lithium battery, USB-C fast charging technology, 1.5V constant output for high-drain electronics, eco-friendly long-life battery replacement.