Review on Talentcell Rechargeable 72W 100Wh 12V/8300mAh 9V/11000mAh 5V/20000mAh Battery Pack: Ideal Power Solution for LED Strip, CCTV Camera, and More! by Dion Jeep

I used this to power 12v LED strip lights, and it does a great job. Good output, and great battery life. When not being used on LED light strips I carry it to charge USB devices and it has come in handy many times. I really like the on and off switch on this compared to other batteries. and I've left it on for days with nothing charging and it didn't seem to drain the battery.Need to have the power on while charging the battery pack. Never had a device that worked like this, so naturally I've plugged it in and forgot to turn the thing on resulting in no charge. So heads up.