Comments on: 9 volt battery tongue test

By: Grey

Grey — Thu, 03 Jun 2010 17:37:48 +0000

The great thing about 9v batteries is that the contacts connect to each other. I made a run of about 12 of these as a kid. Needless to say i wont be touching them to my tongue again

By: sean

sean — Fri, 02 Oct 2009 02:11:48 +0000

@brandon- yes i suppose we're ghetto like that. i just bought a bunch of new floodlights for our office and you can bet i'll be unscrewing all those and taking them with us when we move in december :-)

@dave - "don't whiz on the electric fence" :-) -> http://www.electricfencewhiz.ytmnd.com/

By: Mack

Mack — Fri, 10 Jul 2009 05:16:36 +0000

I never tried that. A battery can work better by putting one end on your lip (-) and one end on your tongue (+) to really tell if it’s goodly alive.

By: Sandy

Sandy — Sat, 22 Nov 2008 01:29:32 +0000

My smoke alarm cherps and I have changed the battery twice and finally change to a lithium 10 year battery. It only cherps when it gets below 60 degrees in the house. When it warms up again, it stops. Strange! Need Help and Sleep.

By: sean

sean — Wed, 10 Sep 2008 20:40:43 +0000

@Matt – no doubt. those braincells are long gone and clearly electroshock, while appropriate in some situations, is no cure for being navigationally challenged and forgetful.

sean

By: Matt

Matt — Wed, 10 Sep 2008 20:02:43 +0000

I think I found the reason that you need to iPhone trick to find your car… one too many batteries tested this way. ;)

By: Spurtz

Spurtz — Wed, 21 Nov 2007 20:03:04 +0000

That metallic taste is chlorine gas. Not too smart, better to use a multimeter.

By: Bob

Bob — Wed, 03 Oct 2007 16:32:06 +0000

Anyone come across a schematic or instructions or a kit for a hobbyist built tester? (that doesn’t involve body parts)

By: the_rock

the_rock — Mon, 24 Sep 2007 19:42:31 +0000

I’ve been testing 9V batteries like that for over 50 years and it works (qualitatively) just fine. You can easily check 1.5 V batteries too — just wet your finger to touch the other electrode. The effect isn’t as strong, but you definitely can tell a dead battery…

By: Neville

Neville — Tue, 04 Sep 2007 02:11:02 +0000

Hey what happened to spending a few bucks for a battery tester? lol

These days the only thing I use a 9-volt battery for is my smoke detector and boy do I know the battery is dead as the detector makes a high pitch cherp every minute.