[coolhandcountry]

The quark has built in cut off as well. The mgm has a programmible cut off so you can chose which one. The quark has adjustible voltage to where to cut off per cell. It self detects the cells. The quark has a cut back feature and then shut down cut off. You can tell when it is coming. The 9920 will run the 1950 8t. That is what I ran. It was great combo. I ran 6s limn and up to 20 nimhs.