Alkaline Battery Question

[jadaro2600]

What is the mAh rating of standard alkaline pile batteries, the non rechargeable kind?

[jadaro2600]

So, I've had these four aaa batteries, two sets in parallel, they've been lighting this LED for two weeks now and they show little sign of weakening ( green light is not getting any weaker ).  they were supposedly dead at the time of their use - they had lost greater than 10% of their voltage.

Anyone have any ideas on the mAh rating of standard batteries? any links? ..anything at all other than the book about "understanding batteries"?

[exxcomm0n]

Wikipedia is your friend (the answers therein are NOT always completely verified, but I've compared this graph against another I found on the 'net and it had silimar values).

http://en.wikipedia.org/wiki/Battery_(electricity)

P.S. What's the current draw of the LED?

[jadaro2600]

By characteristics, 20ma. ..

but I've not measured across the leads.