1.Description: It is a UPS uninterruptible power supply control board. 2.Features: 1>.Support charging and discharging at the same time 2>.Large current 3>.Small size 4>.High efficiency 5>.Support short circuit protection 3.Parameters: 1>.Product Name:UPS Voltage Converter Module 2>.Working Voltage:DC 5.0V-12.0V 3>.Output Voltage:DC 9/12.0V 4>.Output Power:9W/12W 5>.Support Battery(No include!):3.7V Lithium or polymer battery 15Ah(Max) 6>.Working Temperature range:-40℃~85℃ 7>.Working Humidity range:0%-95%RH 8>.Size:50*20*6.3mm 4.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 input power supply cannot be reversed Otherwise the module will be damaged. 3>.Users can install a common anode Red-Blue LED by yourself as charging indicators.Blue light indicates whether there is a load at output.Keep Red is charging.There is no battery if Red flashing.Red OFF if charged. 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. 6.Application: 1>.Ordinary power supply; 2>.Battery charger; 3>.Mobile power; 4>.Power conversion; 5>.Infrared alarm; 6>.Network equipment such as switches; 7>.Router; 8>.Battery car modification 7.Package: 1pc UPS Voltage Converter Module