Eneloop – rechargeable battery without the downsides

For the first time in battery-history it has been possible to combine the advantages of rechargeable batteries with the advantages of disposable batteries. This new kind of batteries was developed by SANYO, the worldwide leader in rechargeable batteries, in 2005 and has been put on the european market in 2006. Since then it has been the most successfull new battery ever put on the market.

Historically, disposable and rechargeable batteries have their individual advantages, which were impossible to combine.

Disposable batteries could be used immediately out of the package and could be stored for months or even years, without having to consider their self discharge. Their ease of use was unbeatable, they could be used basically everywhere. However, once empty, they had to be thrown away and a new battery had to be purchased.

Rechargeable batteries had the major advantage, that they could be used more than once. By re-charging, the use of one battery could be multiplied.

This clear advantage however, was associated with some less appealing aspects. Before usage, they had to be charged and once charged, they lost their energy rather fast. So frequent re-charging or charging just before usage was necessary.

Eneloop bring the best of both worlds to a single battery, combining the positive aspects of each type of batteries to create one that is even more appealing.

  • Low self-Discharge: Once charged, the Eneloop can be stored and used after an entire year and still has 85% of its power.  Most rechargeables would be empty after that period.
  • Easy to use: Ships already charged and can be counted on like a disposable battery
  • Applications: can be used in the same hardware as both types, including NiMH
  • Higher Performance: lasts longer than standard rechargeables
  • Protects the Environment : can be recharged to full capacity up to 1000 times
  • Lower Cost: Has a lower TCO than regular rechargeable batteries

Disposable Batteries

Rechargeable Batteries


• can be used immediately• are simple to use• have low initial cost

• can be stored for long time

• have to be charged before use• are complicated to use

• have higher initial cost

• need to be charged frequently

• can be used immediately• are simple to use

• can be stored for long time

• can be used only once• are not environmentally friendly

• have high long term cost

• can be used many times• environmentally friendly

• have low long term cost

• can be used many times• environmentally friendly

• have low long term cost

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