ROG Ally enthusiasts worldwide are on a mission to boost battery life for their handheld gaming PCs. A Reddit user recently enhanced their Asus ROG Ally by installing an 80Wh battery, achieving better backup times on SteamOS. Now, taking innovation further, an Indian YouTube channel, Miner TechTips, has successfully fitted a 90Wh battery into the device.
To accomplish this, they sourced a 90Wh C41N2013 battery from an Asus ROG Strix G15 laptop. The cells were carefully disassembled, reconfigured into a compact stack, and insulated with Kapton tape to prevent heat transfer and short circuits. They also replaced the original SSD with a 2TB Kingston KC3000, using a trimmed 90° M.2 adapter insulated with the same tape.
To accommodate the larger battery, they 3D-printed a custom backplate and tray, taking 19 hours to create. The result is a slightly thicker but more ergonomic design. Once everything was installed, they replaced Windows with SteamOS. The modded ROG Ally now operates at 15–20 W for AAA games, providing 3.5 to 4 hours of gameplay, and at 7–10 W for indie titles, offering 7 to 8 hours. Charging is completed in about 2 hours and 10 minutes. Despite the device being around 200 g heavier, they find it significantly more practical.
While these enhancements are enticing, the original mod creator cautions against folding the battery, citing increased risk. On Reddit, users including u/Talaxin and u/Kira980 have shared their experiences and concerns, highlighting safety considerations.
Miner TechTips has documented the entire process in a detailed video, which, although in Hindi, can be easily understood with subtitles or translation. For those curious about giving their ROG Ally a battery boost, this video is a comprehensive guide to the intricate modification process.
