Good battery HamonyOne, problems when removing the old battery

Since the original Logitech battery for my HarmonyOne after 3.5 years of use only capacity for 1.5 days stopped before he had to be recharged, I bought this battery as a replacement. The battery fits perfectly into the remote control and can be loaded properly in the HarmonyOne with the original Logitech Charging Cradle.
Problems have occurred only, at all first find out the old battery from the HarmonyOne what nothing new battery can yes. As I have read in other spare batteries for HarmonyOne, the old battery inflates and then clamped in the remote control fixed something. Here I have only tried in vain etc. the old battery with a small pair of pliers pull. What then has helped perfect: the old battery front up slightly (so that it comes through the front elevation over it) and then laterally press a screwdriver against one side of the battery, use the screwdriver as a lever and push away from the opening to the rear and thus the battery-side push forward slowly out until you can pack the battery with your fingers. New battery in, leave plastic lids on it and recharge the battery first really: When the old battery was then out, the rest was easy.