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Q: Why do alkaline batteries run down so quickly when used in electronic devices like a digital camera ?

A: In fact, alkaline batteries were not designed to meet the very high power demands of today's electronic devices. They have a high capacity but they can only deliver their full capacity if the power is used slowly. Electronic devices such as digital cameras place a high power drain on batteries, so it is better to use rechargeable Ni-MH batteries for these type of devices. Another option is to use Lithium batteries as they also work well in high drain applications but they are expensive and are not designed to be recharged.