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AAA Usb Charger Help Answered

I just bought a new Sansa e260 and I've been looking at these usb chargers but they all use 9v or AA and i have a ton of rechargeable AAA battery's, There 1.2 v so 5 will be 5v. Will this work if i just make a case draw the power from them out via usb?

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warlord
warlord

13 years ago

use 4 AAA and you'll end up with about 5v +/- depending on state of charge. The only difference with using AAA's is that you have a lower capacity. So you'll be able to do fewer recharges with it. The plus side is that you'll have a smaller package.

https://www.instructables.com/id/EEAVXXDF15QB5E9/

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LeetLandon
LeetLandon

14 years ago

Well then would 4 work? (4.8v)

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photozz
photozz

14 years ago

yes, it will work, to an extent. the only real difference will be how long the batteries will last. AAA batteries are smaller than AA bats. They carry less amperage, and so may draw down faster than their larger cousins. If your going to use 5 of them, make sure the charging circuit you pick uses some kind of voltage control, as 5x1.2v=6v. and 6v could blow some devices if it's expecting 3-5v.