That one is a simple battery holder with just one terminal per side. You need something with two terminals on each side and the proper XS10-4P connector.
I ordered the proper cell holder but it won’t be here until the first week of January.
I know it won’t work for testing my flashlights. I got it just for batteries. In the future I would like to be able to check the flashlights if something goes wrong.
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I think he can use it with the included leads/probes. Just as a standalone holder. But looking at it, it could add some significant resistance to his measurements.
It’s not the extra resistance, it’s the missing second pair of contacts that makes it a proper four-wire measurement, which eliminates most of the influence from contact resistance.
I basically need the cell holder for the most accurate reading. Otherwise I’m going to get resistance from the probes or anything else that I use to hold the battery.
I don’t think I am communicating well. With the way I would use that I would put the cell in the holder and just use the kelvin probes that come with the meter on the screw head on the holder. So it would be using the 4 wire probes, just held on the holder contacts instead of the battery itself.
And adding whatever resistance this holder has to the measurement. I’d guess something around 20-300mΩ. You really want the sense contacts as close to the battery as possible.
I understand what you mean.
The probes, assuming you’re referring to the ones of the HRM-10, are also 4 wire ones, so in theory the measurement should close or identical to the battery holder.
The battery holder has 2 contact surfices per side (so 4 total) by having a small terminal/springloaded pin inside the bigger one (but isolated from it) and the ‘regular’ probes have 2 spring loaded pins on each probe, so also making 4 ‘channels’.
The reason why I personally always use the battery holder to measure cylindrical cells (18650/21700) is: 1. It is way ‘easier/faster’ in use than the probes. 2. It is way easier to get consistent, repeatable results than with the probes, which might vary slightly when not pressed against the battery under a (perfect) straight angle.
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I got my meter today and testing voltage is pretty easy. However I definitely need the cell holder for testing resistance. I order one but it won’t be here until the first week of January. I also need to find data on what a good resistance should be for each of my batteries.
Thanks for all the help.
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My holder should be here about the same time.
BTW, sometimes the data sheet for cylindrical cells has the typical AC resistance listed in the specifications.
Thank you, I will check into it.
I ordered these leads at the same time I ordered the cell holder. I had a discount for them but I’m not sure what they are used for. I thought maybe you could tell me what they are good for.
HRM-10 Internal Resistance Meter with TFT Color Display, Kelvin 4-Wire Connection, 1000mAh Battery(A) Amazon.com
These are 4-wire probes to measure the internal resistance of batteries.
I didn’t know for sure if that was what they are used for, thanks.
I bought my stuff directly from FNIRSI-- running a discount right now. THey also have a pretty nice Clamp Meter.
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Those much easier to use than the alligator clip leads on cylindrical cells, With the clips you need to hold the jaws open while taking measurements. Also the dual probes on each lead are spring loaded. In theory if you fully compress them while taking measurements you should get more consistent pressure for each measurement. If they are the same as the ones that I got with my meter, the length after the Y split is on the short side for measuring 21700 cells. I can’t get them perpendicular to the cell contacts when measuring. Which makes taking measurements a bit of a PIA. Anyway, the ones you linked are useful addition. They are what I use for measuring individual cells.
I’ve added 6 more batteries this week and they should come in handy.
This is what I have, it tests batteries under load.