The most common batteries, used for almost all the usual applications nowadays.
Alkaline or Lithium batteries designed for high-pulse applications such as photo cameras.
Silver-Oxide batteries - low discharge rate for extended periods of time.
With high energy density and having a low self-discharge rate, they are best for electronic applications and modern watches.
Zinc-Air batteries - dedicated for hearing-aid devices.
Special batteries, high energy density and long term storage capabilities, being especially designed for military and industrial applications.