Rechargeable18650 Li-ion Battery 3.7v (Recycled- original) Anode Chuck capacity: 1/4" (6

Chuck capacity: 1/4" (6

DC Current on I/O Pins : 40 mA

The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using

or a full-blown alarm

Rechargeable18650 Li-ion Battery 3.7v (Recycled- original) Anode Chuck capacity: 1/4" (6Introduction : Li Ion 18650 cylindrical rechargeable batteries. Used for device needs 3. 7V power Building portable power device that needs high energy density and low weight Product Specifications Capacity. You can connect more than one to get more voltage or current. Features : Type : Lithium Ion . Voltage : 3. 7 V. Battery Capacity : 1400 mAh.