Testing batteries

[EpipeforRico]

Is there a way to test the round stick-like batteries (Is there a proper name for them?) for charge level, amps, etc? Is a special meter needed? What’s the bestway to test them?

 

[Keeferes]

Is there a way to test the round stick-like batteries (Is there a proper name for them?) for charge level, amps, etc? Is a special meter needed? What’s the bestway to test them?

Using a multimeter. I use a Fluke digital myself. A quick google search will get you YouTube result on how to use the meter.

 

[EpipeforRico]

I have a multimeter.
On the battery connection, I’m thinking the outer circumference is the negative pole
and the
“post” on the inside is positive.
Looks like it’ll be easier as a two person job.
One to hold the battery & push the button; the other to put the multimeter probes in place.

 

[Keeferes]

I have a multimeter.
On the battery connection, I’m thinking the outer circumference is the negative pole
and the
“post” on the inside is positive.
Looks like it’ll be easier as a two person job.
One to hold the battery & push the button; the other to put the multimeter probes in place.

Here you go.

 

[EpipeforRico]

Here you go.

Good refresher video. Thanks.

I was referring to the batteries that have both the 510 & eGo connections. It's easier to have someone fire the battery while you put the meter leads on the positive & negative terminals.

 

[Ryedan]

It is easier with two people I'm sure, but I've done it myself with my hands only. Hold positive probe in left hand thumb and pointing finger, battery in same hand between palm and small and ring finger. Negative probe in right hand on outer threads and hit button with side of right thumb.

If your hands end up like a pretzel, you did it wrong

 

[Virtual Life]

The probes on my meter came with alligator clip attachments. Clip the negative and hold the positive probe. Can't be hard to find this clip after market. Radio Shack?

 

[rowdyplace]

Batteries should be tested under a load. Connecting a multimeter across the terminals will tell you the "static" voltage, but will not give you a true measure of the condition of the battery. By placing a resistor across the terminals - during the test period , and measuring the voltage drop across that resistance will give you a much better view of the battery's condition. Then resistance chosen should be near the anticipated battery load.

 

[EpipeforRico]

... By placing a resistor across the terminals - during the test period , and measuring the voltage drop across that resistance will give you a much better view of the battery's condition. Then resistance chosen should be near the anticipated battery load.

And how do you do that with EVOD or eGo -type batterries?
I would think you would need some type of doohicky to screw onto the battery.

 

[rowdyplace]

-Build a test jig.
-Modify your meter's test leads. (Place the resistor from the red to the black test lead.)
-Take an old atty and solder test leads and the resistor to it - then it screws onto the battery...