Phantom Power - Charging your Blackberry

How much electricity does your BlackBerry (insert your PDA here) really use each year?

To answer this question we need to understand and measure three components of energy use.

The first component is the electricity consumed by the charger to recharge the battery. This will depend on how much the BlackBerry was used. I chose a Friday, where I had been somewhat busy, and the BlackBerry showed 50% charge remaining.

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