This one KEL-103 300WVery nice, what are you using to do a discharge test?
It has USB, RJ45 and RS232.cool, does it have some type of pc connection for data export?
I also have a basic tester but measure higher current than it should so Ah are not to trust.I'm not sure, are you saying you only measured 272 AH?? I hope that's not correct, maybe your settings are not right? Many of us are using the ZKE-40 or a basic amazon fan tester;
Please post the screenshot and include both the AH and WH.
Thanks,
I will pm you info... I was hoping they had fixed the 280K but now I think it is not got good.
Not sure I agree with the grade A/B qualification so not sure how to answer? Grade A I guess, bought brand new from Docan.gonmag8 those are grade A or Grade B? Did you get a test report, what did the terminals look like?