Reference to battery capacity by size, chemistry?

[milkyspit]

My apologies as I imagine this has undoubtedly been asked before, but does anyone know of a good online reference to battery capacity (mAh) by size (AA, AAA, C, D, 9V, 123A, etc.) and chemistry (alkaline, lithium, NiCd, NiMH, etc.)? /ubbthreads/images/graemlins/confused.gif Even better would be a reference that also outlines the typical load constraints on the batteries; in other words, what are the optimal and maximum current flows the batteries can typically handle? Brand names aren't really that important to me but would be icing on the cake.

I ask because I'm starting to think about custom lights I'd like to build (must be the CPF influence /ubbthreads/images/graemlins/cool.gif ), and a big part of the equation will be a solid understanding of which cells will provide the capacity to achieve the runtimes I have in mind, as well as which cells can/can't handle the output level at all!

There's got to be some kind of simple reference to such information... doesn't there?

 

[milkyspit]

Re: Reference to battery capacity by size, chemist

I should append to my previous post that one of my immediate questions is how a 6V lantern battery (both heavy duty and alkaline variants) compares in mAh to four D cells. Still, I'm really looking for some kind of reference material that will answer such questions for me with any typical battery.

 

[Doug Owen]

My personal fav is Eveready, guess I still miss the cat:

eveready batteries

Tech info is top right, from there on, you're on your own....

Doug Owen

 

[milkyspit]

[ QUOTE ]
Doug Owen said:
My personal fav is Eveready, guess I still miss the cat:

eveready batteries

Tech info is top right, from there on, you're on your own....

Doug Owen

[/ QUOTE ]

That does seem to have some good info... and the cat was definitely cool.

 

[batterystation]

Check www.sanyobatteries.com too

 

[cheesehead]

Duracell.com is also enlightening,...

Seems like Duracell and Eveready are both slapping D-cells into the 6V lantern batteries. Seems like using a 4D adapter is the most sensible solution. Guess I can now save my money instead of buying the over-priced lantern batteries with 4D's glued in them.

 

[Doug S]

[ QUOTE ]
cheesehead said:
Duracell.com is also enlightening,...

Seems like Duracell and Eveready are both slapping D-cells into the 6V lantern batteries. Seems like using a 4D adapter is the most sensible solution. Guess I can now save my money instead of buying the over-priced lantern batteries with 4D's glued in them.


[/ QUOTE ]

For the past 15 years or so Duracell 6V lantern battery has contained 4 D cells instead of the larger F cells as lantern batteries were sized for. This comes rather close fo fraud IMHO. AFAIK, the Eveready "Energizer"#529 alkaline lantern batteries still contain F cells as God intended. Compare the weight of the Eveready and Duracell versions, you can tell the difference by heft.

 

[Mark_Larson]

Re: Reference to battery capacity by size, chemist

And how many people will buy the Duracells because of the lighter weight? /ubbthreads/images/graemlins/yellowlaugh.gif

 

[cheesehead]

Re: Reference to battery capacity by size, chemist

Eveready "Industrial" weigh about 650 gram with mah of 18000, while one of their D cell's weighs about 141 grams with a mah of 18000. Very curious.

I think Eveready is also being bold.

 

[JohnK]

Re: Reference to battery capacity by size, chemist

http://data.energizer.com/batteryinfo/product_offerings/alkaline/energizer/alkaline_consumeroem.htm

another site

 

[cheesehead]

Re: Reference to battery capacity by size, chemist

Their consumer brand is 26000 mah (44% more juice), so I guess they still use the F cells. The "industrial" uses the smaller D's. Again, wouldn't you expect the "industrial" to be better?

 

[AilSnail]

Re: Reference to battery capacity by size, chemist

I haven't found high loads data easy to come by for 123's.

So here are a few tidbits: (from memory🙂 surefire holas draw about 2.2-2.5A, and they are supposed to last for 20 minutes.

I lit a 10.2v 10w HID with four fresh sf123. It drew about 1.1-1.2A, and the voltage settled at 9.6.

An N1 lamp draws about the same, and is supposed to last 60 minutes I think. A badboy 750 also draws about that on 2x123. Maybe runtime databases around here is a good place to extract data.