3.7V Lithium Battery DC UPS Uninterruptible Module Charging And Discharging Boost Power Outage Boost

Product description:
Input voltage: DC 5V-12V (this voltage is the voltage when charging the battery)
Output voltage: DC 9V or DC 12V can be selected (default is 9V, you can also change the jumper to set to 12V, and the output voltage is the voltage when only battery power is used, if there is a charging input, the output will be equal to the input)
Output power: MAX 12W
Board size: 50*20*6mm