Unusual Challenge

There was or maybe still in a very Big Boat and a Dingy owned by a Contractor. The name on the the Dingy was "Original Order" and the name on the Big Boat was "Change Order".

Could you please advise how you got a 60% reading on a cr2032 lithium battery. When I replace a battery on a wireless job, it was my understanding that there is no test for a life of a lithiom battery.

John Sowden American Aentry SF Bay Area snipped-for-privacy@americansentry.net

Whenever I have a need to check the current status of a battery, I use a static resistance load.. First you need the discharge rate sheet from the manufacture. Then a meter to read the static voltage on the cell Second another meter to read the current from battery to load Third a rated load (resistor) I use different resistors to make up the discharge current as listed on the manufacturers discharge sheet. (take care to use a high enough wattage rating on your resistor)

Then just add the load to the battery and monitor the discharge rates on the meters.. Compare your reading with the manufacturers sheet.. ;-)

you can do the same thing using the device as the load.. giving you a better idea of battery life expectancy ...

Isn't that fun.. ? RTS

Then again you could get one of these and test the battery much easier. ZTS MBT-1 Pulse Load Battery Tester Search on eBay!! $95.00

Have fun!!

Les

I think these methods are for a Gell Cell that is rechargeable. Actually about 30 years ago I took a millameter from an Ademco 1005 control, put a shunt resistor across it, and a set of clip leads connectd to the meter terminals. I just laid it across the battery for a couple of seconds to measure the battery voltage under load.

This is a different situation. The battery under test is a dry cell and I am trying to test the battery without depleting the energy left in it. Oh, and I and too fruglly chalenged to spend 95.00 to do what I did for

I contacted several lithium battery mfg. and no one knew how to test the battery.

John

As best as I can understand your request then.

The only useful part of the battery you'll be able to test is the potential (ie, it's holding voltage) Not it's working wattage available..

It might be possible to check the chemical potential inside the battery, to see how much reactant potential might be available, but I have no idea how you might be able to accomplish that without dissembling the battery..

Just put you volt meter across the terminals and see what you got.. If the case markings say 6 volts, and you read 6-6.5 volts, odds are you still have a working battery. If the meter reads 5.75 or less volts, it still might work , but not for long under load..

For reference, I once bought a case of carbon/zinc "D" cells, meter test said they were all good (1.65 volts) However none would power anything.. I took one apart and found that the carbon rod in the center was broken.. That in itself was the problem, no path way for the batteries "voltage" to develop a current flow...

Hope all that helps with you request....

RTS

Hi John,

Every battery that I know of has a life. Trying to squeeze out every last electron can be a PITA and as such, is it worth the time to do so??

I have this tester to test batteries that I am involved with on a daily basis. Alkaline, Lithium, LiPo, CR123a, CR2032, AA, AAA, 9 volt and many others.

Before I had this tester I would use my volt meter or just replace with new depending on the situation and guess?? Now I use the tester to test the batteries before I install them to verify that they are 100%. I have found a Dead Battery in a pack of NEW from time to time. Very Frustrating!! But it happens!!

Yes, the cost is $95 but in MY opinion it is worth every penny.

You may and apparently do see it another way...................

Have a good week!!

Les