When I charge my Magic Mouse 2 to full charge, unplug it, and then immediately plug it back in, the battery meter reads 3% and gradually creeps back up to 100%. Does this mean the rechargeable battery is done for? The mouse is only 3, maybe 4, years old.
When not plugged in, the mouse cannot connect over Bluetooth, although Bluetooth is otherwise working on my computer. I'm guessing this is because the mouse in fact has no power when not plugged in, but it could be something else.