36 of 36 people found the following review helpful
, 17 May 2013
This review is from: MaximalPower Rechargeable Replacement Li-ion Battery for Fuji/Fujifilm FinePix/Real 3D W1 Cameras (Electronics)
I got five of these, numbered them so I use it cyclically.
My only concern was output peak, average and deviation so I don't fry my camera. For 6 pounds I could not ask for miracles, only the minimum.
I have been monitoring the battery performance with a voltmeter and a simple setup to simulate work-discharge logging everything into a speadsheet, cycled each several times to see how they perform.
Regarding the output, aftermarket chargers overcharge the batteries slightly comparing to the original charger. They do perform longer after that.
Forcing the charge with a different source to reach 4.9V really improves the lifetime...but I don't recommend it. :)
Some basics specs:
Note that the camera input is rated at 5V, as long as the battery peak is under that it is totally safe.
This batteries maximum never passed 4.25V after charging on a third party charger.
This batteries tops 4.2V on the original charger.
The perceived performance is aprox. 10-20% longer than the original battery under my normal use.
Under use they are as stable as the original (note that my sample is only one original battery against five maximalpower).
This battery stored after full charge drops about 0.01V per day, so I am comfortable to carry only batteries and leave the charger home.
They do improve over cycles, however I had no patience to carry on with more cycles to see where it goes.
Another note, the original battery sometimes got very hot when intensively used. With this ones I never spotted the same issue. but I did nothing to analyse it more carefully.
To sum up, this product is awesome. Trust me, I am an engineer (researcher).
Update after 2 months: It seems that they got better, i.e. last longer after about 7 cycles each. Or maybe I just got better with the camera... but I do get more than 300 shots per charge easily, even shooting occasionally.
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