Guru
Joined: 13/10/2014
Location: AustraliaPosts: 2232
| Posted: 04:29am 21 Dec 2023 |
Well it's just as well I tested the Current and voltage from EBC- Battery tester.
The Discharge Current was 12.6A NOT 10A on the first Battery test, that means the first battery and graph that I posted above was running at its rated AH.
I realized something was wrong when I repeated the test at 20A, the higher current makes the initial cell float chg drops straight away and gives a must smoother curve at the start.
Tested at 20A Discharge the battery measured 178Ah ???
Tested the 20A current draw and it was actually less than 20A at 19.7A which brings it back to the correct value AH for the Cell 170Ah.
Trying to calibrate EBC Tester is a problem and it appears there is a lot of frustration on line about calibrate - anyway I managed to get the 20A discharge calibrated so that's the main thing.
So two of the clone Cells I tested are virtually like new. There is hope for the rest.
I'm about to make around 60 Copper cell links myself, the plated ones that came with the cells are needlessly thick and make it hard to remove all R-loss. The two layer copper units I made and tested have virtually zero loss and less clamping force needed. I will just check them occasionally until they have set in.
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Edited 2023-12-21 14:31 by KeepIS