Review on Rechargeable 12V 3000MAh Lithium Battery Pack: Power Bank For LED Strip, CCTV Camera & More by Adam Vang

This is a nice battery pack at a good price. I'm using it to power LED strip lights. The USB outlet is a nice addition to allow it to charge a cell phone in a power outage. My only issue is the indicator LEDs which are on all the time - whenever the pack is switched on. I'm using this in a closet and want to minimize recharging and the indicator LEDs might shorten the life between recharging. As a general backup for small electronics, the LED indicators are not an issue. Overall, I'm very happy with this pack.