2 Replacement Batteries for Sram AXS, for eTap Eagle XX1 X01 GX Reverb Force Rival Red XPLR, Just The Battery

I own a MTB and Gravel bike both run Sram AXS. Each came with a SRAM branded battery. I also have a road bike with Shimano Di2. The Di2 battery lasts months while the SRAMs run about half of that. But the SRAMs are easier to remove and cheaper to replace. Although these MRX versions are much better value. Due to the shorter battery life I needed to start carrying a back up. Found these and saw decent feedback and have had no issues so far. Some claim these do not last as long as the SRAM branded batteries. My guess is they likely come from the same factory. I have not conducted any rigorous testing to determine if they are better or worse but for the much lower price it is a no brainer to have 3 or 4 of the MRX on hand.

I had to return the first set because one of batteries wouldn't charge. Second pair work perfectly and so far they last longer than the SRAM batteries that I've been using for 2 years. We'll see how they fair long term but so far no complaints.

Received batteries, charged them up, and within 5 minutes of riding, triggered a low battery warning. Both batteries did this. Unsure if I got 2 bad batteries from the same batch, but I didn’t have good luck with them and ultimately returned them. Great price if they work for you, but you might have to try a few times.

These are a low-cost replacement for the SRAM AXS batteries. I only use these for a RockShox AXS dropper post, not shifting, but yesterday (I've been using these for several months) I found that my dropper post wasn't actuating every time. When I examined everything, I found that on two of my batteries, the little tab on the bottom had broken off and so the battery was wobbly in there and the contacts were sometimes making contact, sometimes not. I'm not sure if this is an issue only with these off-brand batteries but from the two with the broken tab, it appears that the tab was glued in place and not part of the plastic casing. When not in use, the batteries are in their charger or have the red cover on them. But, of course, I can't find the tab that's broken off somewhere so I can't glue it back on and am not sure how trying to make a little tab will work, so I guess I need to buy new batteries now.

I’ve had these for three years! They have lasted great! Still charging and working well! I’m buying them again for a new derailleur that came without batteries.

Nice cheap batteries. They work great.

I purchased this battery exact brand in Aug 2022 and it's been fantastic. Zero issues with charging on the SRAM charger and battery life has been equally good to OEM SRAM. Fast forward to Sept 2025 and I purchased this (2) pack... disappointed. The "new" version doesn't always recognize the charger making it a crap shoot to try and charge these. I still need to put some ride time in with these for a final verdict but so far these are not that good. I'll update the review as necessary.

Excelente muy buenas para la bicicleta vienen con el protector

Funcionan súper bien

Bought these after my original battery got stolen from my new bike when locked up on my car. The reviews seemed positive so I opted for these. Now I can saw these batteries are great! I've ridden a lot this winter in zero degree temps and I can tell absolutely no difference. They last really well and I'm pleasantly impressed!

I have five AXS drivetrain systems and misplaced one of the batteries. Decided to purchase these batteries as a less expensive option for a replacement. The batteries came fully charged and look quite similar to name brand. Installed the battery and did a two hour ride and had no issues. Checked the battery status in the app and it still indicates “good”. Can’t comment on longevity.

Artículo de muy baja calidad. Queda más pequeño que el origina Lo cual provoca un falso contacto y no funciona correctamente

These seemed to be a good replacement, but one of two batteries completely failed (red light on charger) after a year of very low use. Also, they are slightly larger in width than the original SRAM battery, so are a tight fit in new model AXS derailleurs and need pliers to remove to charge - that's OK in the shop but crappy on the trail. I'd suggest going with official SRAM parts and skip these.