18650-3.7 V 4000 mAh Battery Large Capacity Right Button Battery for LED, Devices, 4 Units

18650-3.7 V 4000 mAh Battery Large Capacity Right Button Battery for LED, Devices, 4 Units

• Widely used: the 3.7V Rechar ion battery type can be widely used in , such as LED s, portable devices, power tools, mini USB fans, s, power supplies mo
• Long Lifespan & Rejection: The Recho ion battery can be recharged up to 1200 times due to its larger storage capacity and longer lifespan, which is environmentally friendly. Can be fully charged even after 1 year
• High capacity: NCR Rechar Li-Ion batteries with a large capacity rated of 4000 mAh, 3.7 V.
• Safety: reverse polarity protection, overcharge protection, overcurrent protection, overvoltage protection, short circuit protection, over-temperature protection to prevent damage to battery and equipment
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