I would say that is good. Is it I would like to know though if it is discharging to the same voltage? I use a seperate charger and before I charge the discharged batterys I put them in a flashlight and finish discharging them.
I would suggest getting a seperate charger . Wouldnt take any chances on such a simple thing as a bad battery ruining a $500.00 investment . Chargers are cheap yu can get a pretty decent charger for between 20-30 bucks....just my opinion