Shop around for AA and AAA batteries and the main types you’ll find are alkaline and lithium disposable batteries. Lithium batteries last a lot longer in more energy intensive devices. We've found that they can give you 2-3 hours more power than an alkaline battery. But they're also much more expensive.
It has a standard battery with a two-year warranty at the bottom end, a "gold" line that packs a three-year warranty along with "maximum cold cranking amps and reserve capacity ratings," a Platinum EFB battery that contains "proprietary carbon additives" is designed for tech-packed vehicles and cars with a stop/start system.
Ranking brands is different from ranking batteries, of course, and it turns out to be a lot more complicated. You cannot necessarily trust that every battery made by one brand is automatically better than every comparable battery from any other given brand.
While the 1300 mAh battery performed well, Jensen notes that 1300 mAh is a considerably low capacity for your average AA battery. On the other hand, the 2600 mAh battery (which tested at 2801 mAh) was at the top of the capacity rankings for all AA cells.
The highest-drain tests we referenced for Great Value were 3 amps, via Henrik K. Jensen. At about 1 amp, these batteries would provide about an hour of life. Great Value alkaline AAs have discharge curves that indicate a pretty standard alkaline performance — if a little low on capacity.
CinemaSound rated the cost per hour for Fuji's EnviroMax AA at the highest of all alkaline batteries they tested, edging out the Duracell Procell. Fujitsu is slightly more consistent in the sense that the battery brands we considered were almost all around the bottom of the pack, with the strange exception of the Fujitsu Universal Power AA.