Achtung dieser Schritt ist für den reinen Akkutausch unnötig und quasi falsch! Die Spule kann verbleiben, der Akku ist einzig die einzelne mittige Lötstelle!

Second is totally unnecessary step for battery replacement. Only the one in the middle is the electrode of the battery. Same in the earlier step with the coil, don’t unsolder the coil if all you want to do is battery replacement. Just more fiddly work and risk of damage.

Unnecessary step for battery replacement! The electrode of the battery is solely the single solder point in the middle and the battery comes out just as well if you just leave the coil. If all you want is to replace the battery. just leave the coil, It’s fiddly and risky to break the wire and more work, only disadvantages. Good efforts!

i third that, this needs to be added ASAP, you have no chance of getting it out without unclicking those two latches that lock the inner assembly to the outer casing.