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I get the stated question is generate power But if you are just looking for power a battery is very weight effective. One AA battery is only 0.8 ounce. A pair (1.6 oz) on low power will last ...
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I get the stated question is generate power But if you are just looking for power a battery is very weight effective. One AA battery is only 0.8 ounce. A pair (1.6 oz) on low power will last ...