Question about Audiovox Energizer Lithium Batteries 2 Pack Aa Cell Lithium Battery (Energizer)

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How many hours will 4 AA lithium batteries power a constant draw of 2.5 watts?

Powering a LED light strip

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2.5 Watts sounds pretty high for an LED strip. If the batteries are paralled and the applied power is 1.5 Volts, then you will be pulling 1.6 amps - the batteries won't last long at all. The batteries are good for around 2500maH, (Milliamp hours). so figure you may get around 2 hours of life for the batteries.

Posted on Jan 16, 2013

  • Ryan Jan 18, 2013

    I was informed by an electrical engineer that the AA lithium batteries have apporximately 3+ volts each and if placed in series would equal 12 volts of power (3x4=12). Does this help or change the outcome?? Thank you!!

  • Bill Chestnut Jan 18, 2013

    The AA batteries are 1.5Volts each, so in series you will get 6 volts. The batteries are good for 2500 maH, and at 6 volts, you will be pulling about 0.4 amps, so figure the batteries will last about six to eight hours.

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