0ur opinion:

:
The Maxell Battery Backup Pack provides up to 20 hours of auxiliary battery power for iPod players from four AAA batteries for occasions when consumers expect to be using their players for long periods of time between recharging. lt includes adapters for various size players and a belt clip for ease of portability.

:
ldeal for outdoor activities, long road or backpacking trips, and any other extended period when a power source might be several hours (or days) away, this backup iPod battery pack keeps your music flowing throughout the afternoon and night. The pack connects to your iPod's 30-pin dock connector, with a built-in clip keeping it securely attached to your belt. 0nce attached, the backup battery unit delivers an extra 15 to 20 hours of playing time, far more than the iPod's integrated rechargeable battery. And should the backup battery start to run down--as revealed by the LED indicator--simply insert another four AA batteries (not included) and you're back to full strength. The backup battery is compatible with the iPod 3G, iPod 4G, iPod photo, iPod video, iPod nano, and iPod mini and carries a 90-day warranty against defects.

What's in the Box
Backup iPod battery, belt clip, user's manual.

---

---

Buyer's feedback: - * Does not work of iPod Touch ...
This product does not work with the new iPod Touch. NO WAY, it maybe ok for other iPod's but do not waste your time if you have the new iPod Touch.

---

Buyer's feedback: - Works great and just as advertised
I bought this battery pack for my wife's iTouch, specifically for long plane rides where the internal battery pack won't suffice while watching movies. The Maxell battery pack gave us about 8 or 9 hours of extra video time, which was just a little less than I was expecting, but still great. So with the extra 8 hours we were able to watch video for a total of about 13 hours. And just to reinforce what others have said, this battery pack does NOT charge your iTouch internal battery. It is simply an external power source.

---

Buyer's feedback: - * great product ...
This is a great product. It is great for plane rides and long trips and anytime you need to watch a video ipod for long stretches of time. It has saved me on numerous occasions. I now have two, one for each kid.

---

Buyer's feedback: - Power to spare
I stuck in 4 rechargeable AA's in there and don't have any idea how long the power lasts. Never even come close. Plenty for loooong trips.

---

Buyer's feedback: - * Cheap - and worth it! ...
I bought this with one thing in mind - powering my iPod Touch on Transatlantic flights. When you watch videos, it really sucks the juice out of the internal battery on the iPod and you will be lucky to watch 2 whole movies on one charge. With this battery pack, I was able to watch 2 movies plus listen to several hours of music.

The only caveat I can add is that the instructions say that it will power the unit, but not charge the internal battery. When I plugged it into my iPod with a nearly exhausted battery, it did indeed charge the internal battery pack. This is not a big deal because it did what it promised which is a fairly inexpensive way to extend my time.