2 Pcs Batteries + Dual-Port Charger for SRAM AXS/eTap, The Charger Unit Comes with USB C, Both Batteries can be Quickly Charged at The Same Time, 300 mAh 7.4 V 2.2 Wh for One Battery.

First charge and use. I recharged the two batteries that came with my SRAM group just fine. I charged the two off brand batteries that came with the charger and am running them now on the bike. Seem to work the same as the more expensive official SRAM batteries.

These hold charge well.A pair of expensive original SRAM batteries that I bought at the same time already don't hold charge anymore, but these are still strong.Recommended!

Does the job just fine

Bought this set for my AXS GX shifter and AXS dropper to have a backup on the trail and so that I could charge both batteries at once. The charger charges both these batteries and the genuine SRAM batteries. I have about 14 hours of riding on the batteries in relatively cold weather (30-40 degrees) and the light on the derailleur and dropper is still green. Since I've never kept track of how long my genuine batteries last (I check the charge before each ride and charge when the lights go red) I can't compare these batteries to the SRAM batteries. But 14 hours and still going strong seems great given the price. Will keep using and update this review if anything changes. Overall - if you're looking for replacement batteries and don't want to pay for genuine SRAM batteries, these seem like they work well.

Very fast delivery, and so far they charge and work flawlessly.

3 month update: these batteries also seem to last much less time. I'm not sure if it's related to the fit mentioned in the original review, but during the winter (which is hard on batteries) these will not last 10 hours of riding. I had a full battery on Saturday, then the next Saturday I went out to ride and the battery died 5 miles in. Just enough time to be a total pain, but not far enough to warrant a car ride homeOriginal review: I've got multiple bikes with SRAM AXS groups, so I've got lots of batteries all around. Official SRAM ones and generic. These ones are just not built to the same tolerance of the other ones I've purchased. They wiggle a little bit more than id like both in the charger, and most importantly on the bike. I've tried on multiple bikes, and these batteries just don't fit right. However I've used them, and they seem to work fine. However because of the fit, these will be relegated to being in the saddle bag as emergency back ups.

It’s nice to charge both batteries at once. Batteries seem great too

I bought this just for the 2 slot charger but with additional batteries weren't much more so I figured why not. The charger itself works great both with the provided batteries and the OEM Sram batteries. As far as the provided batteries, they work fine (2by 11 speed etap). Battery life seems fine. Used for several weeks with no issues. I've never actually ran out of batteries on both the OEM batteries or these, so I can't say how long these actually last for and how that compares to stock ones fitment is a little tight but nothing horrible. Would recommend them again.