Which option would give me more mileage ?

[Davidoff]

So, with a certain ammount of money, I can buy 4 AA batteries rated at 2700 or I could pay a bit more and buy 8 AA's rated at 2000 . Which do you think it's a better investment ?

[milorad]

well gee, 2700 vs 4000, wonder which one's bigger?
it comes down to whether you want to swap or not.

[Tommy]

I would go the the higher rated mAh. If you're shooting a big event, they'll last longer before having to be replaced. I use batteries rated at 2500 mAh in my speed lights. If I use a LOT of flash, I still only need to replace the batteries once throughout the night at an all day wedding.

[Davidoff]

Well, obviously the higher the number the longer they'd last, what I'm asking is the about the price/performance ratio.

[milorad]

you have that already... $ are the price, mAh is the performance.
so what's the ratio?

... again, it all comes down to whether you want to swap 35% sooner, knowing that you'll have 67% more power if you do.

DId I really just have to write all that out?

[Wilt]

($ / mAH ) = price / performance. (mAH / $) = performance/dollar. You have the numbers for where you want to buy, we don't.

If you need 3000 mAH, the first choice is a non-choice!

[DSMITH131]

And it depend on the brand some 2700mAH are not really what they say for instance I would chose eneloop 2000mAH over energizer 2500mAH any day