18650 3.7V 10500mAh Lithium Battery Rechargeable Battery XH2.54/PH2.0-2P Plug Suitable For Bluetooth Speaker Alarm Clock

3.7 V 18650 lithium battery 10500mAh Rechargeable battery pack megaphone speaker protection board +XH2.54-2P /PH2.0-2P Plug Nominal Capacity：10500mAh Voltage：3.7V Product Size：66.5*18.7*55.3mm Standard Weight：About 140g Plug Type：XH2.54-2P / PH2.0-2P (Dual Plugs) Application：Headlights, miner's lamps, flashlights, searchlights, loudspeakers, wireless monitoring equipment, medical equipment, instruments, traffic signs, portable small appliances Advantages of Lithium Battery - Small size, light weight, large capacity, eco-friendly, and no memory effect. - Ideal power supply for portable electronic devices; please note the following usage precautions to ensure safety and durability. Lithium Battery Usage Common Sense 1. Use a standard 4.2V lithium-ion battery charger for charging. 2. Prohibit large discharge current to avoid damaging the battery. 3. Prohibit over-discharge; the single-cell voltage should not be lower than 2.5V. 4. Strictly prohibit disassembling or short-circuiting the battery, as short-circuiting may cause fire.