Akkupack upgrade

Since my Akkupacks do not last very long anymore I decided to double its capacity by replacing the internal 400mAh akku for a 800mAh 14500 litiumcell since the akkuslot is big enough. ;-) I do not recommend anyone to try this at home. I am just proud of what i achieved because you cannot buy replaceable Akkupacks anymore for this “Mouse“ and i love my . Special thanx to u/hbyx who sent me his spare Akkupack to try since his sadly died.