dealsbattery tester for aa/aaa/c/d/9-vol,t rectangular…

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I generally use the device I'm trying to power to tell me whether the batteries work. This must be a trap to sell me a battery tester tester, and then they'll of course have my number on the battery tester tester tester.

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@snapster: battery tester tester tester certification is pretty expensive to get though. but, if i find a deal on one ...

actually, i use one of these because i do the taboo thing of mixing fresh and new batteries in a device. i also have a bad habit of leaving old batteries on the counter when i replace them. i usually see them a couple weeks later and can never remember if they're new or old.

besides, if i didn't have fresh batteries, how would i ever power my High School Musical clock i got in a BOC a long time ago??

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This thing is worthless. Unless the battery is almost totally dead, it checks it as in the green!!

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I have one of these and found it really unreliable, plus the "scale" is imprecise with the color bands instead of voltages or other quantitative levels.

I was very confused when I tested brand new batteries and they came up in the yellow or red... and sometimes I had batteries that tested as green, but my camera said they were low. The final blow was when I tested a battery as red, put it aside and tested others, and when I returned to re-test, it was in the middle of the green. Something smells rotten there!

A cheap multimeter is your best friend for battery testing. Assuming that you trust any of their cheap imported products, Meritline will sell you one of those for $6. Works for at least six times as many things, too!

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@saramwrap: at least 7: you could test the voltage of the batteries to test the reliability of this tester! Get both!

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fine. here's your battery tester tester (tester):

http://www.meritline.com/mini-digital-multimeter-lcd-display---p-60060.aspx ($9 + free ship - $6 one is sold out)

maybe i just got one from a good batch, but i've found the 99 cent battery tester quite reliable. but now, i'll have to get a multimeter and see just how reliable it is.

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@carl669: "$6 one is sold out)"

I knew it. It's a conspiracy!

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@snapster:

conspiracies, conspiracies everywhere!
tinfoil hat, on my hair.
it blocks the rays, from humans and not.
keeps me alert, not a zombie-bot.
mission to the moon? i'll bet the bank,
that it was done, in a tank.
single shooter? from a building?
the grassy knoll, is where i'd be hiding.
david rockefeller, UNBC,
new world order, they can't hide from me.
add some flouride to the water,
people submissive to those in power.
elvis presley, the show is over,
not a chance, i saw him in Dover.
area 51, hangar 18, aliens exist!
i've been abducted, i've seen!
cell phone, credit card,
of these things i am rid.
wait. i'm on the internet.
CRAP!
i'm on the grid.

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remember when batteries came with a strip that you push to test the level?

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DO NOT BUY! This thing is junk. I've on my 5th one because they just stop working for no reason.

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The first one I bought died when it got dropped. The second has lasted about a year. And the comment stating that it tests the batteries as "green" every time? That doesn't make sense. This has a digital display that tells you the voltage.

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So many stupid comments, so few that actually talk about the product. Thank you for those few that do.

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I got one of these used it a few dozen times and seems to work well. Cant beat the price

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I have two of these (I tend to lose things - I also tend to be too lazy to find the lost thing...and they were like $1 total)

Anyways, 1 works good.. the other not so much. Mostly I just use 'em for me Turtle Beach headset. It has a tendceny to drain one battery a hell of a lot more than the other, so I use this to make sure my rechargeables are drained before I pump 'em back up.

No, I don't really have a point. They're totally hit and miss. But they're also a buck. Coincidence? Perhaps.

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@carl669:

The problem with a multimeter is that many do not have a nattery tester mode, just voltage, and the voltmetter setting will not load the battery enough for a valid test. (A battery needs to be tested under load (ie. while current is being drawn from it) and without a load, will show as much better than it actually is unless almost totally dead.)

The Meritline tester, at least the one I have, uses a 4 ohm for 1.5v (AAA, AA, C, D) cells and a 215 ohm load for 9v batteries. (I'm not sure what load it uses for button cells.)