DC 3.85V 550mAh 722428 Rechargeable Lithium Battery for Sony WH-CH720N、WH-XB910N、INZONE H9 Wireless Noise Reduction Gaming Earphones Battery Replacement

Garbage. Says low battery after 3 minutes of use. Charge all day with no improvement.

got for sony WH-CH720N. had 60% battery out of the box but won't hold a charge. the headphones are cooked.

This fits Sony Xb910n . Testing the performance right now will update as I notice. It started with 50% now at 7% Looks like it’s not charging anymore. Will update tomorrow by trying again otherwise I am returning

It's the right physical size, and the plug is the same. The headphones power on and report about 60% charge, however, when you plug in the USB, the light comes on for about 2 seconds, and then starts to blink, and refuses to charge. So despite XB910N being listed as supported, the charging system seems to be incompatible.

I bought 2 of them, none is charging, don't waste your time. I give 2 stars only because you can return the item without any issues

Por qué no carga al 100 solo llega al 35% cuál es problema??? Quiero apolo en el producto pero no puedo comunicarme

Don't compatible with sony ch720n, As temperature sensor missing,can’t charging

After watching a video on how to replace this battery, I took apart my Sony headphone and was able to replace the battery. Jeweller's screwdrivers were required and nimble hands. The clip on the battery is quite small and I got it connected but it was not that easy. For such a consumer product, Sony should have a battery that can easily be switched out not one where I need to disassemble the ear piece to change the battery. The old battery was down to about 10 minutes of life while the new one has over an hour so far without a recharge.

Don't compatible with any headphones As temperature sensor missing wouldn't charge DON'T WASTE YOUR TIME