This module is a portable mobile power supply that supports 3.3V/1A and 5V/2.2A two voltage outputs. It is designed specifically for rechargeable 18650 lithium ion battery.
5V output current is rated at 2.2A continuous, with a support peak at 3A current (NOT recommended for overload, the module could be damaged easily), the output of the current depends on the quality of the 18650 batteries too!
The on-board batteries can also be charged via USB micro B or USB-C port (at the back of the PCB)
Note: The connection of the batteries is in parallel. Pay attention to the positive and negative terminals of the batteries when inserting them into the battery holder. Inserting them in the wrong direction can cause the charging chip to be permanently damaged.
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Warranty Period: 12 months
Features
This power bank supply has a built-in lithium battery protection IC with overcurrent, overvoltage, Undervoltage, etc.
It has a type A USB port output and extended the 3.3V and 5V output ports to facilitate customer needs and use, greatly reducing the problem of fewer ports
The 4-level LED light shows the remaining energy in the batteries. The default power-on is always working. It needs to be manually turned off.
Maximum 1.8A charging current via USB microB or USB-C port.
Maximum 3.0A discharge current high-integration mobile power IC
PCB size: 99.7 * 48.2 * 21mm (L*W*H)
Input (Charging):
Port: Micro USB, Type-C USB
Input requirements: 5V constant voltage power supply can be used as charging power input, matching charger 5VDC, 1A or above
Output:
Port: USB or expansion port
Output parameter: 5V/3A or 3.3V/1A, via the sides pads
Conversion efficiency up to 95% (high conversion rate)