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Consumer battery mAh

ARG

ARG

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I haven't found my answer from Google, so I thought I would ask here.

When going to the store to buy AAA/AA/C/D/9V cells they don't list the mAh rating on the batteries.
It's required by law in Canada to list the amount of litres on a can of pop, oil, milk, lighter fluid ect. Same goes for weight and so on.

Why then do battery manufacturers get away without having a milliamp hour rating on the cells?

I use eneloops for most things now, but when I need an alkaline cell I have to go to the internet to find which has the highest capacity, or the best value per milliamp hour.
 





djQUAN

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I read somewhere that it has something to do with that primary batteries' capacities vary wildly depending on load current so they don't list them at all.
 
Dr_Evil

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With all the Li Ion batteries that have incorrect mAh specs, do you really think they'll be correct on alkalines?
 
ARG

ARG

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djQUAN said:
I read somewhere that it has something to do with that primary batteries' capacities vary wildly depending on load current so they don't list them at all.
Click to expand...

That would make sense. Thanks!

Dr_Evil said:
With all the Li Ion batteries that have incorrect mAh specs, do you really think they'll be correct on alkalines?
Click to expand...

Duracell/Enegizer would probably be more honest than ***Fires :p
 
Blord

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You can find some information on the net, like this Compare Batteries and Battery Life Questions
Or here, http://www.allaboutbatteries.com/Energy-tables.html
The primary batteries have a much lower typical drain than their rechargeable cousins. The rechargeable batteries are usually rated in multi Ampere ratings and are suitable for high power applications.

The txt format didn't turned out so well. :p
Here are some conservative power ratings for good quality alkaline-manganese dioxide batteries available at the local grocery store.


Battery Type Typical Flashlight mAh Drain Capacity (mAh) Designed For Typical Drain (mA)
D 1 Amp or 1000 mAh / runs for 24 hours 12000 200
C 1 Amp or 1000 mAh / runs for 24 hours 6000 100
AA 1 Amp or 1000 mAh / runs for 24 hours 2000 50
AAA 1 Amp or 1000 mAh / runs for 1 hours 1000 10
9 Volt 1 Amp or 1000 mAh / runs for 50 Min. hours 500 15
6 Volt Lantern 1 Amp or 1000 mAh / runs for 11 hours 11000 300
Click to expand...
 
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