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When choosing battery power, you need to consider whether to use rechargeable or non-rechargeable (primary) batteries.
Rechargeable batteries are more expensive to buy, and in addition, you will need a battery charger. In the long-term, they should work out cheaper if they are managed correctly. The recharging process may take several hours, and so a spare set of batteries may be needed.
Non-rechargeable batteries are cheaper to buy, but may prove more expensive in the long-run.
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