Based on a study by the Electric Power Research Institute, it costs $1.36 per year to fully charge your iPad every other day, reports 9to5Mac.
You spend more running a 60-watt fluorescent light bulb for a year.
With the economy in a weak state, power-efficient devices are expected to gain more widespread use due to their low operational costs.
The future will likely see a huge shift away from conventional computers and a focus on portable devices like the iPad and its counterparts.
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