Article: Cool battery, smart spam stopper -- Cool Tools.

Byline: Keith Shaw

Here are two more products we've been testing recently:

N-Charge Power System

Devices that give your laptop extra power when you're traveling are nothing new, but having the same device recharge your handheld device and mobile phone at the same time is. Valence Technology (www.valence.com) sent us one of its N-Charge Power Systems (VNC-130), which gave us extra battery life for our notebook and could recharge our iPaq PDA at the same time (it also can recharge a cell phone).

The system works with several models of notebooks (including Apple, Compaq, HP, IBM, Dell and Sony), and is small enough (11.81 by 9.06 by 0.51 ...

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