Olympus E520
Normally, I use only original batteries, have already experienced some failures with foreign manufacturers.
Not so with this battery it ,, works now for 4 weeks of daily use camera.
+ Fit
+ 100% performance - just like the original battery
+ Also holds power at minus 10C °
+ Works with handle Ownuser perfectly. According to this description should only run with original battery.
+ Does not get hot during continuous use, as some other third party
Good value highly recommended