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Product review
June 2024

Disposable AA batteries

We tested 1.5V disposable AA batteries to see which lasted longest.

June 2024

Panasonic

Extra Heavy Duty

Price
Prices are what we paid per battery.
Score
19
Don't buy
We don't recommend any carbon zinc batteries because alkaline and lithium perform considerably better and have longer shelf lives. The Panasonic Extra Heavy Duty performs terribly across the board in comparison. In addition, many of the alkaline batteries we tested were cheaper to buy than the Panasonic Extra Heavy Duty.

Test results

  • 26
    Performance (low-drain)
  • 12
    Performance (high-drain)
  • 25
    Energy (low-drain)
  • 10
    Energy (high-drain)

Good points

  • No obvious good points.

Bad points

  • Terrible low- and high-drain performance.
  • Terrible low- and high-drain endurance.
  • Terrible low- and high-drain energy.
  • Poor shelf life.

Model

  • Type
    Carbon Zinc

Specifications

  • Time to fully discharge (low-drain) (hrs:mins)
    19:41
  • Time to fully discharge (high-drain) (hrs:mins)
    1:09
  • Expected shelf life
    3 years

More info

  • Availability

Member reviews

1 Member review

Batteries
Pros

Nothing

Cons

Panasonic Extra heavy duty did not last very long at all

Recommend it?

No, this product has too many drawbacks.

David S.

Used 1 month or less

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