After batteries usually only after several full charge / discharge cycles their performance unfold, that bothered me the first little battery power (about 130 shots) not really.
From the third charge / discharge cycle I noticed a sudden increase in output.
After the now 5th loading cycle when used in three different Lumix enclosures (GH2, G5, G6) at least. 200 flash shooting, the battery performance increased to a max. Total number of images of more than 600 (!!!). One of the two batteries even came to more than 750 images. This exceeds the capacity of the original battery to more than 50%.
I store the battery in the operating pauses of the cameras basically not the housing, which prevents discharges.
To what extent, a fully charged, unused committed, not located in the housing Photo Primus battery loses its charge over several weeks / months or reserves, I can not say the short time.
Rest Display:
The Photoprimus® brand replacement batteries show in shooting mode to display no rest.
In the casings G5 and G6, the residual indicator appears on the picture playback mode in the viewfinder and on the display.
In the older GH2 but neither the recording nor the playback mode.
Fit:
Although Photoprimus® brand replacement batteries have the same dimensions as the original batteries, they slip in GH2 housing when opening the battery cover slightly above the locking lug out. In the G5 and G6 of this phenomenon did not occur. To contact problems occurred in all three cases NOT.
On the whole, the Photoprimus® brand replacement batteries provide a good alternative to three times as expensive original batteries, provided that you can do without the rest display in recording mode / wants.
So I can give a buy recommendation for this product like.
VAK
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Update 1 on 07.22.2014:
If the batteries are not used soon after charging, you lose - stored outside the camera - to power.
The stated in my first review more than 600 shots per charge can eg at an event (wedding, sports event) are achieved when the camera is used in the "continuous fire".
When the batteries in the "normal" operation with a mirrorless system camera used (Lumix G), the performance drops to less than 150 photos per charge. Since the original battery with mostly more than 300 photos per charge is more powerful.
Under "normal" operation, I understand: For example, a three-hour hike with switched mirror-less system camera (with electronic viewfinder or 3 "display.) Set around the neck, energy saving mode to 1 minute.
This is likely to be due to the high power consumption of the electronic displays what eg. In an SLR with opt Viewfinder and will come with display off less to carry.
In view of the still low price I reduce the issued in the 1.Rezension very good 5 star hereby good 3.5 to 4 star.
VAK