Since I started about a month ago I have been using shorty and reg auto batteries. I may have to try a manual batt soon but it will be a bit before my next order. I have not seen any issues with the auto batteries I have except for one that has a really hard draw. That one will be going back soon to V4L along with a couple usb chargers I had issues with. Looks like a lot of ppl are into the manual batts, I will have to try one.
My four auto batts now live alone in the back of a drawer.