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Best AAA battery?

joshshermannn1

joshshermannn1

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im sure this has been posted a few times on here, but i couldnt for the life of me find it.
whats the best AAA battery?
i want something that provides the best power output, battery life does not matter.
 





Foshizzle45

Foshizzle45

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Energizer or Alkaline battery's, (They may be some type of superhuman battery that you could get online), but for the ones you could get at a local store, it would be either of those:)
 
ARG

ARG

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I prefer the Energizer lithium's myself, they cost a lot, but they last forever.
 
joshshermannn1

joshshermannn1

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would that actually work? :p haha
btw i got 4 batteries and it works perfect. iv'e never seen it so bright, and i had a 3$ off coupon :D
 
InfinitusEquitas

InfinitusEquitas

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joshshermannn1 said:
would that actually work? :p haha
Click to expand...

There is a small risk. Basically AAA's are 1.5v, whereas 10440's are 3.7v (and as high as 4.2v). I have used 10440's and a spacer in all my pens, about 10 of them, during the past couple of months, and have yet to have a problem, that doesn't mean that one won't happen at some point though.
 
BShanahan14rulz

BShanahan14rulz

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I have a green pen that had abysmal runtime with regular AAA alkies, not to mention the zinc pile AAAs that I have easy access to. I bought some 10440 and made a spacer out of a length of computer power cable cut to length with wood screws drilled into each end.

I also have decent luck with using duracell branded eneloops. Good ol' Sanyo.
 
Benm

Benm

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Sure it will work.. lithium battery voltages sag a bit with load, getting you down to 3.5 volts or so. Brand new alkalines can have a voltage in the order of 1.6 to 1.7, so any well designed driver should be able to handle both a pair of alkalines and a single lithium cell.

The problem with many pen-style lasers is that they come with badly designed drivers: they work fine at 3 volts input, but as soon as the battery voltage starts to sag, so does the current to the laser diode. Lithium and NiZn cells have a much flatter discharge curve, and will work better.

NiCd and NiMH cells may also work, but they supply only 1.2 volts to begin with, so the driver needs to run properly from that. If it does, using rechargeables is often better than alkalines since their voltage will not sag that much with ongoing discharge.
 
BShanahan14rulz

BShanahan14rulz

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Don't forget those diodes we use for test loads? they drop ~0.7V across 'em. If you want to be safe, you can incorporate one of those into your dummy spacer cell. That way, the most voltage your laser's driver will see is 3.5V.
 
BShanahan14rulz

BShanahan14rulz

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gksuko, you should look for the white-topped ones made in japan. While they still say Duracell, they are actually Sanyo Eneloops, the top name in NiMH, with a Duracell wrapper on them.
 
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