Power Supply Adapter - 220v Ac -12v Dc 3a

It is a UPS uninterruptible power supply control board.

Features:
1.Support charging and discharging at the same time
2.Large current
3.Small size
4.High efficiency
5.Support short circuit protection

Parameters:

1.Product Name:UPS Voltage Converter Module
2.Working Voltage:DC 5V 1A
3.Output Voltage:DC 5V 1A
4.Output Power:5W
5.Support Battery(No include!):3.7V Lithium or polymer battery 10Ah(Max)
6.Input reverse connection protection:Yes
7.Input overvoltage protection:Yes
8.Output reverse connection protection:Yes
9.Output short circuit protection:Yes
10.Working Temperature range:-40 degrees - 85 degrees
11.Working Humidity range:0%-95%RH
12.Size:33*17*4mm

Using Steps:
1.Connect right input voltage at input terminal.
2.Check output voltage by voltmeter and ammeter.
3.Connect battery at B+ and B-.

5.Note:
1.Its max output current is 1A and can not keep output 1A.
2.The positive and negative poles of the battery cannot be reversed. Otherwise the module will be damaged.
3.Users can install a common anode Red-Green LED by yourself as charging indicators. Red light indicates whether there is a load at output. Green flashing display capacity. Green OFF if without load or battery.
4.Due to the large current, it is recommended to use a thicker wire. Wire cross-section greater than 1.5 square millimeters.
5.Please read use manual and description before use.