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

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 to permanently keep in my saddle bag since I know I will eventually forget to charge my battery or will leave home with the battery still on the charger.Used it on one ride to make sure it worked and had no issues, but can’t speak to total battery life.Glad I found this smaller option, as it goes unnoticed tucked away in my saddle bag alongside a tool, co2, and a tube. Feels good to know its there to get me home or save a bike trip some day.

Small enough to keep in a saddle bag and held its charge for when I needed it in a pinch.

Garbage. Item failed on first use.

Review of: **[Small,Lightweight] Battery for SRAM AXS Red eTap GX Eagle Force Rival XX1 X01 Derailleur, for SRAM Reverb Seatpost, Colorful, 240mah (Blue)**We have four bikes with SRAM AXS components in our household, including three MTBs and a road bike. I haven't had any issues using this non-OEM battery in any of the components. Fit is fine, including in the OEM SRAM chargers, and performance has been great. Note that this battery is smaller that a standard SRAM battery, both in actual size and capacity. A SRAM battery has 300mAh, this has 20% less - 240mAh. It still seems to last a long time, which I would expect given that it is only a little less.This is a perfect battery to carry as a backup, in case your primary battery dies unexpectedly. With the smaller size and weight (we're talking 14 versus 24 GRAMS difference), it is ideal as a backup since it costs must less than a SRAM battery ($15 compared to $50-$60 for OEM).I absolutely recommend this as a perfect SRAM AXS backup/spare battery to keep you from having a tough pedal back to home or your destination with no shifting.

I ordered this as a spare for my SRAM AXS Force derailleurs. What I did not know was how really small the battery is. The description says it is small and lightweight, but the factory battery and most clone batteries are the same size... and all of them are small and lightweight. I was not expecting something that is half the size of the original and with greatly reduced battery life. I did not have any issues using it in my derailleurs. It works fine and shifts fine, but after checking the stats, it is claimed 240mah while the factory is 380mah. Some riders complain that the batteries don't last long enough as is, others think they are fine. Riding just knowing that this is approximately 2/3rd (if you are lucky) the capacity of factory means I don't want to use this on an every day basis. I sincerely doubt the claim that it is 240mah as well when the physical reduction in size of the battery is at least half. The top of the battery is curved and can be seen in the picture so you cannot fit a flat cell inside, that is just wasted space at the top with an air gap. The factory battery is flat so you can push the cell all the way to end with no wasted space.So the bottom line is that it works, you won't have any issues using them, but for me personally I'm just going to stick this in my saddle bag as an emergency back up. I question the decision to make a battery even smaller than factory capacity as people want longer intervals between charging, not shorter. The batteries already weigh very little, there is no need to try and save space or weight on the bike by making it half the size. If you want to buy a battery for your system and not have to worry if it will leave you stranded or if it will run out then stay with factory batteries.