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Post by MikeMusic on Mar 26, 2021 13:40:43 GMT
Is this a good one ?Makes sense to check before binning (recycling allegedly) batteries as we have so many devices with 2, 3 or 4 batteries. I often find I can re use a battery for months in a clock after another device with 2, 3 or 4 batteries stopped working
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Post by Slinger on Mar 26, 2021 13:53:35 GMT
That link's not working, Mike.
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Post by MikeMusic on Mar 26, 2021 15:14:54 GMT
Thanks Paul, amended
3rd try lucky
Definition of stupidity used to be
Doing the same thing and expecting a different result
Except I did !
Code is subtly different
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Post by MikeMusic on Mar 26, 2021 16:56:19 GMT
Ebay has them for a couple of quid. Most are the same model Seems a no brainer which is apt for me  |
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Post by MartinT on Mar 26, 2021 16:59:34 GMT
Batteries need to be tested under load. Just testing them open voltage doesn't really tell you much (unless they're completely flat).
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Post by MikeMusic on Mar 26, 2021 17:05:13 GMT
Doesn't the meter show what they have left ?
Flat or not is a nice step up from binning them
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Post by MartinT on Mar 26, 2021 17:23:26 GMT
No, it doesn't work like that. You will get a rough indication, but different batteries can supply different current (due to their internal impedance): a button battery much less than a C cell. Open voltage, with no load, they can register quite high and appear to be full. Putting them under load gives the best indication.
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Post by MikeMusic on Mar 26, 2021 18:48:57 GMT
Aha
A look around doesn't tell me enough
How do I find a checker that tests under load
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Post by MartinT on Mar 26, 2021 20:22:26 GMT
It should say so?
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Post by Slinger on Mar 26, 2021 20:33:10 GMT
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Post by MartinT on Mar 26, 2021 20:36:23 GMT
There you go. Don't test them too often, it may fall apart after, I don't know, 100 tests?
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Post by MikeMusic on Mar 26, 2021 21:01:34 GMT
Closest I got was a car battery tester on Ebay
Thanks
100 and fail would be too low - ow !
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Post by MartinT on Mar 26, 2021 21:06:34 GMT
At that price, it hardly matters  |
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