I've bought 6 batteries from different sellers on ebay, but none keep a charge for a full day. Not much better than the original one.

Perhaps the ones I bought were old, or never had the claimed capacity.

Can anyone recommend a seller in Europe, or one that ships to Europe?

At step 8, the round silver thing (buzzer?), you need to carefully pry it out because it is glued in.

The replacement battery was a very tight fit. The foil needed to reshaped a little at the corners etc.

After replacing the battery, the new battery I used only lasted 7 hours. I will try a couple of charge cycles then report back.

A few people mention removing the “PCB“ from the old battery. Can you explain this?