There is an on/off switch on the battery. Can be used to 12V power in various fields. This battery cannot be used for Motor, fan, air pump, water pump. Reciprocating Cycle Linear Act. 3000mAh、 4800mAh、 6800mAh and 9 8 00mAh are 12V 2A and can be used with devices with power b elow 24W.
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