Gel Battery Capacity Meter: Reliable Alternatives to GOLD-PLUS Tester & Calibration Tips

I am looking for a good one that shows the correct values of the gel battery capacity meter. So far I use the GOLD-PLUS tester, unfortunately the device is starting to distort the results more and more often, so I am looking for something new but sure. The website said that maybe the calibration would help, but there is no certainty.
I am not interested in any toys or inrush current meters - I do not use such batteries. Can you provide a specific model or company?

I doubt there is such a measure. If it shows true data on new batteries, then on old ones with reduced capacity, it will be false. The measurement of the instantaneous current under load is not reliable. Only the long-term test is decisive.

DiZMar wrote:

I doubt there is such a measure. If it shows true data on new batteries, then on old ones with reduced capacity, it will be false. The measurement of the instantaneous current under load is not reliable. Only the long-term test is decisive.

How do you doubt it ?!
There is a lot of it on alliexpress !. You buy an artificial load, set it for measurement in Ah, give 1/20 C current and discharge the battery to the preset voltage and go to sleep. When you wake up you will have the current battery capacity on the LCD. Of course, the battery should be charged to 100% before measurement.
The minimum reasonable expenditure, with the possibility of setting the final discharge voltage, after which the load disconnects from the battery is ~ 50 PLN with delivery.
I have it, I checked it and recommend it.
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There are also very advanced:
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The condition of the batteries is also perfectly checked with the Lancol Micro_200 tester. You set it to EN 100A and in a moment you have detailed information about the battery status. The device measures the conductance, so it gives a reliable picture of the technical condition of the battery.

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^ToM^ wrote:

...
How do you doubt it ?!
There is a lot of it on alliexpress !. You buy an artificial load, set it for measurement in Ah, give 1/20 C current and discharge the battery to the preset voltage and go to sleep. When you wake up you will have the current battery capacity on the LCD.

Yet

DiZMar wrote:

... Only the long-term test is decisive.

and there is agreement between us. I doubted any meter would measure the battery capacity in moments as some people believe. For example, when purchasing.

DiZMar wrote:

and there is agreement between us. I doubted any meter would measure the battery capacity in moments as some people believe. For example, when purchasing.

When buying, you will measure with the mentioned Micro_200 Lancol or similar. Because you will measure Rw. On the other hand, Rw for each AGM or GEL battery is provided by the producers in the catalog cards. It is enough to measure and compare the result with the rated Rw and you know whether it has the factory capacity or the low capacity. Rw is relatively proportional to the capacity. Therefore, with this measure it is quite easy to assess it, especially when we are talking about decent products, e.g. Yuasa, Europower, Kobe, because the data in the tables are reliable and usually the measurement result does not differ by more than a few% from what they give in the tables.
When I go to the store to get new batteries, I always take the above-mentioned ones with me. the device and I check the quality of the goods before buying.