Rechargeable18650 Li-ion Battery 3.7v (Recycled) Relay Module Detection of reflective material such

Detection of reflective material such as paper

Excellent dc performance

it outputs low and keeps at low power state

You can use it to connect some serial device to your PC via USB port

Rechargeable18650 Li-ion Battery 3.7v (Recycled) Relay Module Detection of reflective material suchIntroduction : 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 : 2200 mAh.