I've purchased plenty of these from other sources and they work fine. This one did NOT work right out of the box. Red LED will light up when plugged into wall, but the Blue LED will NOT come on and phone will NOT charge. After trying a few different phones I pulled the sleeve out and tested it with my multimeter. 3.8v at the battery leads -Good 3.8 at the circuit board leads -Good BUT only 1.35-1.45v (of the 5v needed) at the USB plug-in -NOT GOOD- Not happy with this battery. Cool color tube for whatever its worth...
My friend got one of these and it charged her phone perfectly. But when I decided to buy mine, the charger would constantly charge, then stop, charge then stop. Even if the charger had full battery. My friend plugged her phone into it and it did the same thing. It was a waste of money for me.
This charger does not work. It only works if I take it off the charger and conect it to my phone right way. If I charge it all night put it in my purse and three hours later I try charging my phone and it will only give me 10% charge at the most.
I'm rather disappointed in this product. It was great the first time, but now it dies so easily. I charge it over night and it dies during the day. I'll buy a different portable charger. But this one is a no go. Don't buy this.
Absolute junk. It never did work. Very, very disappointed..I wanted to use it at my grandson's games and other places that I need to stay in contact with my family. It did not work from the very time I tried it. DO NOT BUY?