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Power your favorite RC toys, drones, planes, and cars with this premium 3.7V 500mAh 14500 Li-ion rechargeable battery pack, complete with a dedicated USB charger for quick, reliable charging. Engineered for consistent performance, this battery delivers stable voltage output, long cycle life, and enhanced safety protection to keep your devices running at full speed. Whether you’re upgrading your drone, replacing an old battery in your RC car, or building DIY electronics projects, this battery and charger combo ensures maximum efficiency with plug-and-play convenience.Reliable Power: 500mAh high-capacity Li-ion cell provides extended playtime.Quick USB Charging: Included charger works with any USB port—PC, laptop, adapter, or power bank.Versatile Use: Perfect for RC helicopters, quadcopters, cars, planes, boats, and DIY gadgets.Safe and Durable: Built-in overcharge, over-discharge, and short-circuit protection for worry-free use.Compact & Lightweight: Ideal for portable applications where every gram counts.