3.7V Li-Ion Mini Power Supply Module Power Bank
This little PCB has the ability to charge/discharge and protect your 18650 batteries. In essence this is what power banks use to step up 3.7 volts to 5v to charge your smartphones or 5v devices. For people who know the risk and safety precautions for Li-Ion batteries, they can solder the battery holder in parallel to increase the capacity of the battery bank. The voltage must be 3.7 volts and must never be connected serially. The led indicator will light up red when it is charging, blue when it is in use and green when the battery has completed charging. It has undervolt 3v and overvolt 4.2 protection features. We would recommend this product for creating your own portable audio device or to power a raspberry pi. You can simultaneously charge and discharge the device.
Specifications:
- Charging Voltage Input: 5v 1A
- Step up Voltage: 5V 1A max
- Battery Voltage Input: 3.7V
- Battery Type: 18650
- Transient Current: 180uA
- Maximum current: 1A
- Dimensions: 50 x 20 x 9 mm (L x W x H)
WARNING
