There is an on/off switch on the battery. Can be used to 12V power in various fields. Titanium Material. Big Push load. 3000mAh、 4800mAh、 6800mAh and 9 8 00mAh are 12V 2A and can be used with devices with power b elow 24W.
12V DC Rechargeable Lithium-ion Battery Portable Battery Pack w/ Charger Switch
