WILLQ Lithium Battery 12V 20AH 30AH 40AH Fish Finder Battery with Dual USB Interface for Nesting Device Oxygen Pump Battery Raft Fishing Light 12 Volt Backup Power Supply,12V,20Ah
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Product description
- BMS Protection Board Built in smart BMS can make overcharge protection, over-discharge protection, over-current protection, voltage compensation, pre-discharge function, automatic switching, short-circuit protection, temperature protection.
- Long Lifespan Built-in A grade original lithium cell, battery cycle life up to 800 times, life expectancy of 12 volts backup battery up to 3-5 years. The battery has been tested for cold and high temperature resistance to meet you use it all year round.
- High Discharge Efficiency the battery can work at a temperature of -20 60 C and the discharge efficiency can reach 95%. When the battery is not used, the self-discharge rate does not exceed 3%. It can save battery power.
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