Posted December 7, 2006
Emergency cell-phone chargers have been around for a while, but they’ve generally been seriously flawed: expensive, disposable (with sealed-in batteries), and good for only minimal extra talk time. Energizer’s new Energi to Go—available for Motorola, Nokia, and Samsung phones—fixes all those problems. Patented "intelligent power management technology" means this baby is almost as efficient at charging your cell as the actual plug-in adapter, letting you start up a phone that's completely drained and then talk for up to ten hours. And because Energi to Go uses standard AA batteries (two long-lasting lithium cells are included), you get to keep reusing it. It's superlight, so you can stash one in your desk drawer, one in your luggage, one in your glove compartment—and forget about them until you suddenly need one. It also makes for a universally appreciated stocking stuffer.
$20 at Walgreens.