This is why I have now ordered this replacement battery in order to always have 2 charged batteries with me and thus to double the life of your camera on longer hikes or similar.
The battery fits perfectly into my camera as well as in the charger for the original battery, was as well given.
I also noticed the very first use of the battery in my camera, that this important last longer than the original battery.
In summary, one can say that the purchase of a second battery for Olympus cameras definitely worth just because the original battery does not hold really long.