QC3 Rechargeable Lithium-ion Battery for QuietComfort 3 Headphone

The battery works perfectly. However, it is important to know that the first charge when you first get it may not last long so you need to recharge it again. After that it holds the charge for long periods. I did not know that at first and was ready to return the product. The company was very supportive and even sent me a second battery when I commented that it did not hold charge. In fact it does. I appreciate their kind gesture to send a second battery but plan to send them a check for the second since the product works perfectly well after a recharge.

Lost my extra battery years ago and realized that I could just get a replacement, so I did. It worked out well since it seems to be the real deal from Bose so that's a good thing. Charged right up and held that charge overnight before I used it for the first time...got several hours out of it before I needed to recharge. So far so good....I put up a picture of Victoria Harbor in Hong Kong for no particular reason other than I like the image and Amazon said images are helpful...so you're welcome shoppers!

First one was defective . Amazon sent a replacement . Returned the defective one to kohl’s . Overall a pleasant experience . The battery works as expected as an actual bose battery.

I read other reviews and expected the initial first charge battery life to be short. So when I received the battery I immediately gave it a full charge and then set the headphones up in the corner to play audio off my iPad. It’s going on 9 hours now and they are still running so I would say I’m super pleased with the performance, even initially. Charged just fine off my original charger also. Great replacement battery.

I'm returning the first battery and having a replacement sent out in hopes that it will work. The first battery starts charging but then causes my charger to go into error mode. Charge lasts in my headphones for about 2 seconds. Not sure if it's an issue with the battery being charged, or if the battery is old stock and can no longer hold a charge. Let's see what happens with the second battery.

This appears to be an OEM battery for my older Bose headphones. It fits and works fine. The old battery seemed to require charging more frequently. I charged this one when I got it and it has lasted a long time.

I charged it when I received it before use. One thing that was odd is after it charged the night the next day afternoon it started charging again. After two days of watching charge it finally seemed to be holding, but it was not really. It lasted not even half the time of my old original battery that only has about half of its life left. The 3rd time I charged it it would not even work or charge again. Completely dead. I would not recommend. Better to just go get a new one from Bose and get what you pay for.Update after asking for return after the 30days they sent me another one that actually seems to work. So they do respond to you. Maybe they have no means of checking these and easier to replace if one does not work. It was not fun having to go through the process to contact them I much rather have a working one from the getgo, but I do thank them for sending me a new one. :)

With all my travel, I guess I lost mine. Found this replacement at a great price, and I’m back in business!Just like original, charges quickly, holds the charge well, just perfect, Thanks!