Member #496657

Member Since: December 7, 2013

Country: United States

  • I'm just starting out with electronics, and I'm trying to wrap my head around how long something can run from a battery. If I understand correctly, this light draws 20 mAh at 3.4v. A single, AA alkaline battery can store about 2,000 maH at 1.23v, so two of them in series would be about 2.5v at 2,000mAh, which would power one light for about 100hrs? IS that correct? Will the light operate at 2.5v when it's rated for 3.4v? Is 3.4v a max? If you ran 8 lights off of two AAs, wouldn't they have a max run time of about 12.5 hours (100 / 8)?

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