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All about laptop batteries: Updated
Ever wondered why your laptop's battery doesn't last longer? We explain the technology behind battery power, and provide tips on how to maximise it.
| Apple iPhone 3GS 16GB | 36 plans |  6% |
| HTC Magic | 5 plans | 4% |
| Nokia E72 | 28 plans | 7% |
| Nokia E71 | 47 plans | 5% |
| Apple iPhone 3GS 32GB | 36 plans | 3% |
| Nokia mobile phones | 11% |
| Apple mobile phones | 12% |
| HTC mobile phones | 5% |
| Sony Ericsson mobile phones |  29% |
| Blackberry mobile phones | 1% |
