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The Battery Guide

Battery Type
Application
Characteristics
Negative Electrode
Positive Electrode
Electrolyte
Alkaline Cassette and Tape Recorders House Hold Electronics Moderate cost
High Performance
Zinc Electrolytic Manganese Dioxide Potassium Hydroxide
Lead Acid
Automotive
Starting Automobiles, Tractors, Marine Low Cost
Moderate Capacity
Lead Lead Oxide Sulfuric Acid
Lead Aid
Motive Power
Industrial Trucks
Military Submarines
Can Deep Discharge 
6-8 Hours
Lead Lead Oxide Sulfuric Acid
Lead Acid
Sealed
TV's, Appliances
Video/Tape Recorders
Low Cost
Maintenance free
Lead Lead Dioxide Lead Sulfate Sulfuric Acid
Lithium Mainly Military but also civilian Applications such as computer backup Can Deliver very high current Lithium Various Organic Solvents
Lithium Ion Computers, Portable Phones Light Weight
High capacity
Graphite Lithium Cobalt Oxide Organic Solvents
Magnesium Military receiver/Transmitter
Aircraft transmitter
High Capacity
Long Self Life
Magnesium Magnesium Oxide Magnesium 
Perchlorate
Mercury Hearing Aids, Pace Makers, Military
Sensors and Detection Equipment
High Capacity
Flat Discharge
Good shelf Life
Zinc Mercury Oxide Potassium Hydroxide
Ni/Cad Wet
(Vented)
Railroads, Communications, Aircraft, Utilities Rugged, Excellent cycle life Cadmium Nickel Potassium Hydroxide
Ni/Cad Dry
(Sealed)
Portable Phones, Tools, Computers, Appliances Rugged, Excellent cycle life.Maintenance Free Cadmium Nickel Oxyhdroide Potassium Hydroxide
Nickel-Metal Hydride Portable Phones, Computers Long Run Time Metal Hydride Alloy Nickel Oxyhdroxide Potassium Hydroxide
Nickel-Iron
(Edison Battery)
Railroad Signals Long Life Iron Nickel Potassium Hydroxide
Silver Oxide Hearing Aids, Watches, Military Missiles, Space Applications High Capacity, Flat Discharge,Long Shelf Life Zinc Silver Oxide Potassium Hydroxide
Zinc Air
(Mercury free)
Railroad long run low drain applications Flat Discharge Zinc Oxygen Potassium Hydroxide
Zinc Air
(containing Mercury)
Railroad long run low drain applications Flat Discharge Zinc Oxygen Potassium Hydroxide
Zinc Carbon Flashlights, Toys, Radios, Instruments Popular low cost battery Zinc Manganese Dioxide Potassium Hydroxide