Thanks for your support. I fully discharged, because I wanted to know about the mAh. Now recharged this pack to 8.4V got allmost 4000mAh into it.
Tested the volt's with my voltmeter, is says 8.55V.
So can I say this pack is OK? I think so

My ecs does have a lowvoltage cutoff, so have to work with a buzzer.
Maybe it's time to get a good esc.
Thanks again..........Appie