Energizer® XP600 Universal Rechargeable Power Pack with 600 mAh (Black)

Unlike the commenters above, it did charge my iPhone 4S, but only about 25%. It is good for recharging my bluetooth devices. I use it daily to charge one of my Bluetooths, seems to be able to do about 8 recharges.Itself recharges via USB, and the multiple adapters are somewhat handy; particularly if you have a Nokia or similar low-end GoPhone.

Compre este producto porque en su descripcion dice que este producto puede cargar la bateria de iPhone y iPod, pero NO es asi.Esta bateria NO SIRVE para cargar iPhone o iPod. Contacte a la empresa de este producto y me ratificaron que este modelo de bateria, XPAL 600 no sirve para productos Apple

I’m not sure why so many people can’t get it to work. I use mine for several devices, including my iPhone, and I have had absolutely no problems. Hint, you do have to push the “on” button and have the iPhone power cord plugged into the USB slot.

Didn't even work!

I bought this because the description said that it works on iPhones, but it does NOT charge an iPhone. It has an adapter that looks like it will work for an iPhone, but it does not charge. I thought maybe there was something wrong with the power pack itself, but I tried it on an android phone and it worked fine. Very disappointed!

This unit works for about 20 charges and then you notice a substantial loss of power. It will not charge any iPhones. The design team did a great job with adding a built in charging usb but you still have to carry around the charging cable for your device. I have lost two already. This device is a complete paper weight. do not buy

I bought the XP600 after I saw it would charge the iPhone. Energizer even provide a connector for the iPhone. When I tried to recharge my iPhone however it wouldn't recharge it. I've sent several emails to Energizer and they now say it doesn't charge the iPhone, even thought their advertising says it does!