All Power Devices/Batteries

The Bottom Line: The Callpod Fueltank is a well-constructed and user-friendly device that works exactly as advertised.

The Bottom Line: The Richard Solo 1800 Backup Battery is on the expensive side, but you get a lot of bang for your buck.

The Bottom Line: The Richard Solo 1200 Backup Battery with Flashlight is a great backup battery option for people who use their iPhones and iPods a lot.

The Bottom Line: The Voltaic Backpack's thoughtful design and solar-charging features shine for keeping cell phones, handhelds, MP3 players, and digital cameras charged away from electrical outlets.

Specs: 15 in x 9.8 in x 20.1 in

The Bottom Line: If you can get over its bulk and price, the Mophie Juice Pack will indeed extend the battery life of your iPhone 3G.

Specs: Lithium polymer, 2.5 in x 0.7 in x 4.8 in

The Bottom Line: The Energizer Power & Play Charging System for Wii is more expensive and less reliable than competing Wiimote chargers.

The Bottom Line: If you're looking for a convenient way to charge a couple of Xbox 360 wireless controls at the same time, the Xbox 360 Energizer Power & Play Charging System is a reasonable option--though it's not the only one.

The Bottom Line: While it isn't particularly fancy, the Energizer Power & Play Charging System for the PlayStation 3 is one of the more compact and versatile charging stations for PS3 wireless controllers on the market.

The Bottom Line: If you don't leave home without AA-powered gadgets and keep equipment with USB ports at the ready, the Moixa Energy USBCell AA NiMH batteries could be essential to pack in your laptop bag.

The Bottom Line: The Juice Pack comes at a high price for a glorified battery, but weary, entertainment-starved travelers will appreciate the extra time it offers.

Specs: 24 hour(s), Lithium polymer