6pcs 21700 rechargeable lithium batteries, 3.7V 17500mWh. Ultra-high capacity for long-term use. Used for small fans, flashlights, remote control cars. Rechargeable design, sustainable energy.

1. Exceptional Compatibility: MINGSCI's 21700 rechargeable lithium batteries are a versatile power solution. With a 3.7V voltage and 17504mWh capacity, they fit a wide range of devices like LED flashlights for camping adventures, solar lights to brighten your outdoor space, racing toys for high-speed thrills, game controllers for intense gaming sessions, emergency lights during power outages, portable devices on the go, headlamps for hands-free illumination, toys to keep kids entertained, remote controls for convenient operation, and doorbells for a reliable alert system. 2. Product Parameters: These batteries feature a standard 3.7V voltage and a substantial capacity. Before purchasing, make sure your device is compatible. They come pre-charged and can be recharged over 1000 times, retaining 60% power even after 2 years of non-use. Their low discharge multiplier and lack of memory effect ensure reliable and long-lasting performance. Stringently tested under quality control standards, they offer a premium and safe power source. 3. Crucial Cautionary Notes: Users must be well-versed in handling lithium-ion batteries. Do not disassemble, puncture, or expose to fire. Avoid throwing into fire, inverting, mixing with other battery types, using with non-rechargeable batteries, or short-circuiting. Never connect the terminals to metal objects. Do not use in waterproof flashlights or sealed battery compartments. Keep out of children's reach. In case of swallowing, seek immediate medical help. Improper use can lead to explosion or leakage, so handle with care.