> dar nepamirskim to fakto kad sarmones baterijos turi daugiau nei 1,5V o akumuliatoriai 
> tik 1,2V automatiskai greiciau ikraunama didesne itampa turintys elementai, bet issikrauna greiciau...

Dar vienas prikolnas faktas, kad kuo mazesne batarkes talpa, tuo trumpiau jos uztenka.
Tesiant tema - alhasines batakes tingios, t.y. jos laiko ilgai, bet greit dirbti nemoka arba nemegsta.
Dar yra hevydjutines batakres, kurios megsta trumpai sunkiai padirbet, o paskui iseit amzino poilsio.

http://en.wikipedia.org/wiki/List_of_battery_sizes#Cylindrical_cells
AA - Typical capacity (mAh)
2700 (alkaline) / 1100 (carbon–zinc) / 3000 (Li–FeS2) / 1700–2900 (NiMH) / 600–1000 (NiCd)
+ <..> zinc-carbon or alkaline types they produce around 1.5 volts per cell when fresh. 
     Other types produce other voltages per cell (as low as 1.2 volts for rechargeable nickel-<..>

+ niuansai, kad ir sitas:

http://en.wikipedia.org/wiki/Alkaline_battery
The capacity of an alkaline battery is strongly dependent on the load. 
An AA-sized alkaline battery might have an effective capacity of 3000 mAh at low drain, 
but at a load of 1 ampere, which is common for digital cameras, the capacity could be as little as 700 mAh.

Taigi dar klausimas kuri kuria prie didelio drain:
Alkaline vs HeavyDuty vs NiMH vs kitos.

***

http://en.wikipedia.org/wiki/Nickel%E2%80%93metal_hydride_battery#Comparison_with_other_battery_types
NiMH cells are often used in digital cameras and other high drain devices, 
where over the duration of single charge use they outperform primary (such as alkaline) batteries.

NiMH cells are particularly advantageous for high current drain applications, due in large part to their low internal resistance. 
Alkaline batteries, which might have approximately 3000 mA·h capacity at low current demand (200 mA), 
will have about 700 mA·h capacity with a 1000 mA load.[28] Digital cameras with LCDs and flashlights can 
draw over 1000 mA, quickly depleting alkaline batteries. NiMH cells can deliver these current levels without similar loss of capacity.