When it comes to gaming on-the-go, a power bank can certainly come in handy – that’s why one creative Reddit user has redefined what gaming on a portable device really means, using an eBike battery to create a powerful ROG Ally power bank that allows up to 24 hours of continuous play time. Shared by Reddit user DoggoLord27, the DIY saw a 48v electric bike battery being wired up to an ASUS ROG Ally X handheld. Thanks to a voltage step-down adapter the Planet Einschieren batter which weighed a ton, can now happily power us on ROG Ally every day of the year.
In a post that quickly gained viral proportions on the r/ROGAlly subreddit, the user laid out the end-to-end process of turning the high-voltage battery into a durable ROG Ally power bank. The battery, which normally powers some 48 volts to drive an electric bicycle, is a vastly higher voltage than is usable by most portable electronics. But via a self-made voltage step-down adapter the Redditor converted the power to a safe and usable level over a USB-C connection – possibly one of the hungrier-looking (ahem) ROG Ally power bank solutions we’ve seen so far!
The setup not only works — it works so well. When the eBike battery powers the ROG Ally, the power bank mod can rehydrate up to 24 hours of gaming, even in heavier loads. That’s even more impressive in everyone’s except for travel chargers which does make this wacky wind up device standout, and explainable why it got the attention of gamers and tech enthusiasts everywhere.
Community reactions: awe and caution
The project soon garnered praise and interest alongside a healthy dose of skepticism from the community. “It would probably be higher once I figure out the best way to mount the batteries,” they added. In the comments, u/lildinkyactivist said they used Jackery instead (another very unconventional ROG Ally power bank), while u/Aflux said the eBike-powered build would be a “solid plant build during a power outage.
But all the feedback was not just positive. One commenter, u/Competitive-Will-701, expressed legitimate safety concerns: “Are you doing voltage step-down? Because 48 volts can wreck your battery.” OP responds, saying how it isn’t a problem since the adapter block (which it connects to) steps a maximum of 72V down to 12V nicely.
Even so, it was, for the most part, an admiring conversation. User u/kellven echoed the feelings of many in the community, writing, “This is such a cool idea.” It’s yet another case of users going to the ends of the earth and getting creative to get more out of their notebooks with custom ROG Ally power bank builds.
Tech creativity vs corporate limitations
This project is not only a demonstration of engineering prowess, but a vivid example of the friction between tech enthusiasts and corporate constraints. At a time when companies are increasingly locking down ports and accessories and repair options, it’s refreshing to see the ROG Ally used in ways that eschew the status quo. Turning an eBike battery into a working ROG Ally is wild, and is the type of out of the box thinking one would expect from the enthusiast community.
Instead of putting up with expensive or underperforming official accessories, an increasing number of gamers are now looking toward DIY solutions such as this ROG Ally power bank hack, so they can continue gaming on their own terms. It’s not just about extended playing time — it’s about ownership, customization, and inventiveness.
Why this matters
The emergence of nontraditional charging options like this ROG Ally power bank project is part of how users today are turning some of the established rules for on-the-go gaming on their heads. As powerful handheld gaming systems become more prevalent, so too does the need for battery life that can keep pace. And while ASUS might never officially announce a 24-hour power bank for us to buy, the community has yet again persevered and shown us that where there’s a power, there’s a way.
