Battery Education

Battery Education Info Graphic


What are the differences between battery types?

In simple terms, batteries come in two basic types: single-use and rechargeable.

Single-use batteries, also known as primary batteries, have one life cycle and must be replaced when drained. Examples include alkaline, carbon-zinc, lithium, silver-zinc and zinc air.

Rechargeable batteries, also known as secondary batteries, can be recharged and used repeatedly. Examples of rechargeable batteries include Nickel Metal Hydride (NiHM), Nickel Cadmium (NiCd), Lithium Ion (LiIon) and Sealed Lead Acid (SLA) batteries.

Our Batteries

Rayovac Fusion
  • 10 year power guarantee in storage
  • Optimized Battery Chemistry
Rayovac Alkaline
  • 10 year power guarantee in storage
  • Rayovac Alkaline is Proudly Made in the USA*
  • *Excludes 9V
Rayovac Rechargeables
  • Holds Charge up to 1 year
  • Best for frequent use & high drain devices
Rayovac Lithium
  • Holds Power up to 10 years
  • Mass usage started in the 2000s

Rayovac Heavy Duty

  • Holds Power up to 3 years
  • Main chemistry in the 1970s