Ideal 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. Once 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.

View Maxell iPod Backup Battery Pack details

Gear up your iPod with an external backup battery for longer run time. Compatible with 3rd & 4th generation iPod, iPod Mini, Photo and U2 Editions, Hi-Capacity external backup battery is long lasting that provides up to 18 hours of extended run time- longer than any other battery of its kind! The battery includes a firewire cable allowing you to charge the battery with iPod Power Adaptor. It is light weight (only 0.22 lbs !!) and connects to iPod with a clear silicon band. NO bulky clip-on holder or docking system is necessary. Chemistry: Li-Ion ; Volts: 7.4V ; Original Amp: 850 ; AmpHours: 850 (Amp-hours are a rating of the amount of energy that a battery can store) ; Dimensions: 3.22 x 2.02 x 0.39 inch. ; Weight: 0.22 lbs. (3.52 oz.)

View Hi-Capacity Backup Battery for iPod 3rd & 4th Generation, iPod Mini, Photo and U2 Editions details