Review on COMPCOOLER Cooling Backpack Internal Operated by Wei Fan

I got this to stay cool during the day when I walked a lot and it worked! On the first day I filled it with ice water from the ice machine and was able to wear it for about 6 hours, with an actual running time of 3 hours. The second day I filled it up to the fill line and froze the whole thing, I got about 4-5 hours of battery life. Every day I could just find and refill ice cream which gave me much more utility. I had no power issues as the battery lasts longer than ice. The nice thing is that in addition to the included battery, there's a USB port so you can plug in a portable battery to get it running! I've only tested it with a USB port and it works great. The backpack actually fits my body very well, I carry it most of the time, there is no weight on my shoulders as the waist belt can support the weight of the bag. . I wore it almost continuously for about 11 hours and had no back problems. In the photo one of the zippers is broken, I did this while trying to put in a second bladder of water to drink. There are two zips on each zip so it's not a big deal and I'll eventually replace it with a stronger zip. The remote came with the plastic case removed, I glued the cover onto the switch and it looks good as new!