A second battery gives you enough capacity for a trans-continental flight. A shy secret of the portable computer industry is that laptop batteries do get used up after a hundred or two recharge cycles. Prudence advises buying the replacement now. More memory Adding memory is the most effective way to increase the speed of your computer. The hard disk drive industry continues to amaze everyone with their improvements in capacity.
Power consumption is the same, and the incremental cost is remarkably small.
It comes with its own wall plug-in power supply. This can read regular CDs, data DVDs, and movie CDs, although the software to play encrypted movie CDs on Linux isn't available yet. Linux Laptops Ltd. Other trademarks are the property of their respective owners.