I've been using these for some time for the wall clocks in my home and the do an average job at it. Beats buying a new AA battery for the clocks though.
I received the product and it is working nice. This product has a problem while charging for earbuds. Since, earbuds or headphones consume less mah for charging, it will auto shutdown. To charge earbuds or headphones, you need to connect another usb and charge your phone and earbuds or headphones same time. It will stay on with this method. Short cables are recommended. Coming to output, My phone (Redmi 9 India) can reach upto 1500 - 1800 mah. My friend's phone (iQOO) gets 2000mah.
It's a perfect option where AA size space is available. No issue with this battery I am using for last 15 days. All good, thanks seller.
You may get a different item than what's shown in the picture. It's gets the job done but quality is questionable, which is expected from a product at this price range.