Rog ally z1E user here, wala na akong ibang hahanapin pa kundi maghintay nalang sa bagong irerelease ulet na rog ally, since I modded the SSD from 512gb into 4tb, from 40wh battery into 90wh battery so I can play up to 3hours of AAA games. I don't think magagawa mo maupgrade ang battery ng...