YXKC C41N2208 Battery for ASUS ROG Ally RC71L PC71L Gaming Handheld Series 15.48V 74Wh

Great upgrade for the Ally Z1/Z1E. This kit does not come with rubber gloves, so either make sure that you ground yourself or you pick up a pair. It’s very nice that everything else is included. The included instructions are not great, so either find some online or use YouTube to guide you. If you choose to stick with the original backplate, you will need to cut away a lot of plastic. This will add some weight, but the placement of the battery will balance out nicely, putting the weight on your palms. Performance is amazing, and is well worth the price and effort. Remember that this will void your warranty. On silent TDP I now get between 5-6 hours of play time!

Easy to install if you have any kind of electronic modding experience. Even if you don't, it's very straightforward and there are plenty of tutorials online and on YouTube. Install took about 15 minutes for me, but I'm pretty good with this kind of stuff, your time may vary. Initial impressions are great. Charged super fast - was completely dead upon delivery and after install was at 90% in about an hour. Battery time has improved by about 50-60% in most of the tests I've put it through, and actually improved by about double in Stardew Valley on silent mode. It's just the first day so I'll update once I have put it more time on it.

Great. Easy to install. Makes a huge difference.

The Battery for ASUS ROG Ally RC71L/PC71L (15.48V, 74Wh) is an excellent upgrade, giving you around 30 extra minutes of gameplay. It fits the handheld well, though you may need slight modifications to the back and front covers as shown in the included instructions. The included tools are high-quality, but the provided screwdriver is too large for the tiny Phillips screws, so a separate precision set is recommended. Once installed, the battery delivers reliable power and keeps your Ally running smoothly. Overall, aside from minor adjustments and the screwdriver issue, this kit is a solid, easy-to-follow upgrade that extends playtime and maintains device performance, making it a worthwhile investment for avid ROG Ally users.

After owning my ASUS ROG Ally for two years, I felt the battery life was definitely lagging, especially compared to the newer Ally X(which I also bought, because I liked the Ally so much). Deciding the time was right for an improvement, I opted for this74wh battery upgrade. Since my two-year ownership meant my warranty was already done (and this modification voids it anyway), I felt comfortable taking the plunge. The installation process itself requires some case modification (clipping away small plastic pieces), which I managed to complete in under 15 minutes. However, before installation, I took an extra step. I noticed the OEM battery had aluminum plate and tape for heat management. Being concerned about maximizing heat protection, I decided to purchase a 0.5mm aluminum plate to stick to the backside of this new battery and aluminum tape for the top side. A quick search online confirmed I wasn't the only one who felt the need to add this extra heat dissipation layer. While this is above and beyond what the instructions require, I recommend it for peace of mind. After installing the battery and my custom heat solution, I charged the device fully and put it through a rigorous drain test. The results exceeded my expectations. I was able to play games for over 3 hours straight before the device completely shut down on its own, which is a massive improvement over my degraded original battery. This battery is definitely worth the upgrade if you are comfortable taking a few minutes to clip plastic, remove the old battery, and insert the new one. The bump to 74wh makes a noticeable difference in playtime. While you don't have to follow my lead and add the aluminum plate and tape, I strongly suggest it as a measure to maintain internal heat stability. This is a highly recommended upgrade for long-term ROG Ally owners.

Works great

Perfect upgrade for my Ally. It's a little time consuming cutting the pieces needed to fit this thing, but if you manage it you will be rewarded. This more than doubles play time on the Ally, making it hold up much better to the X and Z2E models.

perfect easy install completed in 30 minutes total