Small Battery for SRAM AXS Red eTap GX Eagle Force Rival XX1 X01 Derailleur | Compatible for SRAM Battery Charger, for SRAM Reverb Seatpost, Lightweight, Colorful, 240mah (Orange)

Very light, battery shows good health in Stam app.

It worked as expected, though I can't comment on longevity.

it's 13g on my Park Tool scale vs 25g for a sram battery. surely that means less battery life, but it'll work fine for probably 2/3rd to 1/2 as long. still a good value for the price, IMHO.

Have used this for a while, maybe the capacity is not as good as the much more expensive namebrand, but it is my back up and it has served its purpose very well!

Due to much lower capacity than the real thing, these show "Low, 1.5-5 hours" on the AXS app when it's fully charged. Charges fine on the SRAM charger. Fit is kinda loose but it's not a problem.

Good quality

I bought two of these. The 1st one works OK. I use it in a front derailleur and it goes dead about the same time as the SRAM battery in the rear derailleur (rear shifts more so uses more power). The other one is two months old and won't hold a charge longer than a week, even if I don't use it at all. I seem to be out of the return window, so, too bad. Maybe the reliability isn't so good. They fit slightly looser than the original, but I haven't noticed any complications from this.

This battery is compatible to SRAM shifters, I have a Trek Checkpont gravel bike. So, I got caught twice with my shifter battery drained. First time, I was stuck in a high gear riding a bike path and looked like a cartoon character trying to ride. Second time, I was in a hilly section of town and I felt like friggin Popeye trying to get home!!!

Bought this as a backup unit. Worked perfectly when needed. Even like that there's a sort of cover so can just throw it in my saddle bag until needed.