Ergo Comfort Grips Case for The ASUS ROG Ally Z1 & Z1 Extreme Protective Gripcase

I got the 65wh JSAUX mod in mine and had the same feelings as you. It’s heavier and also bottom-heavy in a way that makes it unpleasant. But then I got these sick grips. It totally fixed the ergonomics of the device and made it much more playable. If I were you I’d try these out for $15 bucks before you do anything to the battery again. https://a.co/d/07LwPCec