Test/Review of Panasonic Pro Power D

[HKJ]

[size=+3]Panasonic Pro Power D[/size]

Official specifications (I could not find any real specifications):

• Up to 80% longer lasting
• Panasonic's Pro Power battery offers premium energy for your personal appliances.
• Developed to provide reliable and dependable power, any place any time.
• The improved capacity of the new Panasonic Pro Power battery has up to 80% extra performance compared to last years Alkaline ranges.
• Premium alkaline range: developed to provide reliable and dependable power, any place any time.
• Ideal for high and medium drain appliances.

This is the largest size of the normal primary batteries and like all alkaline batteries the capacity is very load depend.

The capacity is not only depend on load, but also depend on the minimum voltage that is needed.

The 0.1A trace did take about 7 days to do, but it did give more energy than a 3 days discharge.

[size=+3]Conclusion[/size]

These batteries works best at low loads, but you can get about half the energy out of them at 1A load.
I do prefer NiMH or LiIon batteries, they can deliver considerable more power without loosing half the energy.



[size=+3]Notes and links[/size]

How is the test done and how to read the charts

 

[Mr. Tone]

Thanks for the review, HKJ. Alkaline batteries do have a place where they excel and that is very low draw devices. Wow, do they ever lose capacity under any kind of real load, though! That is amazing that at just 3 amps this has only about 1/5th of the capacity at 0.1 amp draw. Your review is a great proof of the load/capacity relationship of alkaline batteries.

 

[Curious_character]

Another important characteristic of alkaline batteries is a self-recovery or rebound effect. If given a rest between relatively short periods of discharge (as, say, in a flashlight that's used only for short periods at a time), they can deliver considerably more total energy than if they're drained in one steady discharge. I think this is particularly true at higher current levels.

Notice, too, how much of the discharge time the "1.5 volt" alkaline cell delivers less than the 1.2 - 1.25 volt you'll get from a NiMH cell over most of its discharge period. More about that at http://eznec.com/Amateur/1.5_vs_1.2_Volt_Batteries.pdf.

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[HKJ]

Notice, too, how much of the discharge time the "1.5 volt" alkaline cell delivers less than the 1.2 - 1.25 volt you'll get from a NiMH cell over most of its discharge period. More about that at http://eznec.com/Amateur/1.5_vs_1.2_Volt_Batteries.pdf.

I have also written about it here: http://lygte-info.dk/info/ComparisonOfAABatteryChemistry UK.html and it can be viewed without any password.

 

[Curious_character]

I apologize for the problem with the link. Somehow it got tagged as being FTP which requires a password to that directory. It's fixed now.

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