TOMO S4 DIY 4 X 18650 LI-ION BATTERY SMART POWER CHARGER (BLACK)

Main Features:

- DIY Power Bank and Charger
Custom capacity by 4 x 18650 li-ion batteries to make your own power bank, portable external supply, provides enough power
Also a battery charger for the 18650 battery, a dual-use item

- Three Inputs
Type-C, 8 Pin and Micro USB inputs, just one cable can charge the power bank, easy operation

- Dual Outputs
Dual outputs, can charge phones, pads or other small electronic devices simultaneously

- Independent Circuit
Independent battery, charging and discharging at the same time, can work together and not influence each other

- LCD Display Screen
Each battery independently clearly displays output voltage and current, easy to read the remaining capacity

- Reverse Polarity Protection
When it comes to the reverse polarity, the chip inside will automatically identify and cut off the power of the reversed polarity circuit, displays an empty battery level
Reversed polarity will not affect the normal operation of other circuits

Parameters:
Battery: 4 x 18650 3.7V li-ion battery ( not included )
3-input ports: 5V 2A ( max )
Output: 5V / 1A, 2A

Tips:
1. When input and output at the same time, it will automatically charge the device first, then charge the battery.
2. Press less than 1 second to turn on / turn off the backlight, press 2 seconds to turn on / off the machine.