Enjoy 50% longer playtime with this new battery mod for the ROG Ally
Published Apr 18, 2025
Includes affiliate content
We love the ROG Ally for so many reasons, from the solid gaming performance on the go to the gorgeous display and amazing speakers. Battery life, however, has always been its biggest weakness.
That’s where JSAUX’s newly released battery upgrade mod comes in. Priced at $79.99, this mod tackles this issue by swapping out the stock 40Wh battery for a beefier 65Wh version, promising up to 50% longer playtime on a single charge.

Game Longer, Stay Cooler
In addition to the bigger battery, this kit also comes with a custom aluminum heatshield. This helps keep the system running cool, even when playing demanding games or running stress tests.
When choosing a battery mod, this is an important thing to keep in mind. The heatshield not only prevents your handheld from overheating but also prolongs the life of both the battery and the Ally itself.
There are certainly other battery mods out there, but most don’t include a heatshield, which isn’t a risk worth taking. JSAUX has a good track record when it comes to ROG Ally accessories, and they’ve put this product through rigorous testing before bringing it to market. If you want to play it safe, this is your best bet.

A Perfect Fit (With a Little Help)
Because the larger battery won’t fit under the standard backplate, JSAUX has also included a custom backplate in the kit. Everything’s designed specifically for the ROG Ally to ensure a perfect fit.
And don’t be too stressed if DIY mods aren’t your thing—the new battery can be installed in less than 15 minutes and the kit comes with all the tools you’ll need for the upgrade. Just follow the easy step-by-step guide in their installation video, and you’ll be all set in no time.

Here’s everything you’ll find inside the package:
- A 65Wh battery.
- An aluminum heatsink for improved cooling.
- A custom backplate for your Ally.
- A pair of gloves, spare screws and installation tools, including a screwdriver, snips and pry tools.
- A decorative battery sticker.
- A few extras, like custom back buttons, thumbstick caps and charging port dust plugs.

Note for SSD Modders
If you’ve already modded your ROG Ally to use an M.2 2280 SSD instead of the standard 2230, this kit won’t work for you. The included heatsink won’t fit properly, and the battery cable can get squished under the larger SSD adapter, potentially causing issues. If that’s your setup, you should skip this battery mod.

Worth the Upgrade?
For $79.99, this battery mod for the ROG Ally offers some decent value for anyone tired of frequently reaching for the charger while playing. The extended battery life, cooler operation and easy installation make it a great option for those who want to focus on gaming instead of babysitting their battery all the time.
This post contains affiliate links to partner brands. We earn a small commission if you click the link and make a purchase. There is no extra cost to you, so it’s just a nice way to help support the site.
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