GearPower - Portable Battery Pack for iPod and iPhone 4s & iPhone 4 & iPhone 3G/3GS(GMP2000P) GearPower - Portable Battery Pack for iPod and iPhone 4s & iPhone 4 & iPhone 3G/3GS(GMP2000P)

Pros: Works Great! I use GPS tracking on my Iphone 4s when I go on hikes. With this I do not have to worry about my battery as the phone stays at full charge the whole time.

Cons: not the same shape as an iphone4

Other Thoughts: The GPS tracking software I use when I go on hikes drained the battery on my Iphone4s pretty quick so I needed to add more battery life, and this does the trick. I am looking to buy more to keep my phone charged on long multi-day hikes!

I also must say I was worried about buying this since some of the other reviews were not that great, but I can not find any problems with this battery pack (other than my one con).

Pros: Will charge iphone 4 from dead to 60% battery before it drains itself. Love it works great, saved me more than a couple of times while traveling all day or stuck on an extremely long call.

Cons: Only con is it gets warm when charging or repowering your iphone.

Other Thoughts: I have 2 of these, and they work on 4 different iphone 4 devices i have tried them on.

Pros: none, product simply does not work

Cons: when you first plug it into the phone, the charging icon appears but after leaving it over night. my phone went from 10% to 1%...I charged the battery pack the night before to 100%

Manufacturer Response:

Thank you for choosing IOGEAR and we apologize for the inconvenience. GMP2000P has been tested and certified to work with iPhone 4 and 4S as well as iPod/iTouch devices. If you have any other question please feel free to visit our site at www.iogear.com or contact our customer support at 1-866-946-4327 / email us: support@iogear.com. Thank you for choosing IOGEAR

Pros: Does nearly 100% charge on the 3GS.

My wife and I use it (on and off its charger) 2-5 times a day. So, its definitely getting its work out.

Cons: As the reviewer before me points out, this thing is a hindrance if hooked up while using the phone, especially for gaming. That is to be expected. So, no harm done.

Other Thoughts: I wish it had a cover for the 30-pin connector when not in use. While I am worried about it being vulnerable, it has remained intact despite being left in my wife's purse all the time.

Pros: Good source for extra power

Cons: Renders headphone connection useless

Other Thoughts: Although this is a good source for power when you need it, when in use, there is no way to access the headphone jack on an iPod Touch because the battery pack is blocking it. Ideally, this battery pack should have a headphone jack extender built into it, to allow headphone use when the battery pack is plugged in.

Pros: Light

Cons: on the big side, oh and did I mention it worked for the first time for about 20 minutes and after that the iphone said this charging device is not supported. stopped working after that, now when I plug it in i get that message instantly. probably was in the IOS 5.01 software or whatever, either way they advertise that it works with 4S and iphone 4. I have an iphone 4 atnt.

Other Thoughts: Newegg is doing an RMA and giving me a full refund so it's all good.

Manufacturer Response:

Thank you for choosing IOGEAR and we apologize for your experience. The GMP2000P is 3GS certified. We have tested the GMP2000P with 4S and the IPhone 4 and it works as advertized. This is now in the certification process. Once again, thank you for choosing IOGEAR.

Pros: Cheap

Cons: 1. Doesn't work with iPhone 4/4s as advertised
2. Doesn't work with iPod touch 4th generation as advertised.

I wouldn't recommend this product.

Manufacturer Response:

Thank you for choosing IOGEAR and we apologize for your experience. The GMP2000P is 3GS certified. We have tested the GMP2000P with 4S and the IPhone 4 and it works as advertized. This is now in the certification process. Please contact our customer service by email: support@iogear.com and let us know in more detail on when and how you’re having this experience. We strive to ensure our customers are serviced with a properly working unit to exceed your satisfaction. Again, thank you for choosing IOGEAR.