iPhone 4 Battery case life extender, 2400mAh internal battery

I bought this product since it was inexpensive as compared to the rest. Well it only worked for one week before there was charging issues. The battery indicator on the case stated there was full battery but when I went to charge the phone the phone would only charge for 2 minutes until the case stopped charging it. But I guess you get what you pay for. I must say it did work perfect for a week though. Another concern I had was there was no brand name on it, no customer service number or address anywhere on the package. I have already returned it and bought a Mophie case instead and love it so far.
If your a golfer you will LOVE this product! All those nifty golfing GPS apps that give you continuous running data on yardages, hazards, and score run your battery down QUICKLY on the course-even on the IPHONE 4. This solar battery charger is the answer!!! I've used it numerous times and it's never let me down! I don't have to worry about my battery running out halfway through the round. I've been looking a LONG time for a product like this and finally it's here! Highly recommended!