Primary Batteries

What are Primary Batteries?

Introducing the Panasonic family

Batteries for every application

Panasonic primary batteries comprise the flagship EVOLTA lineup, our alkaline and manganese families, and a wide selection of batteries designed for specialist applications. Innovative designs promise higher performance, longer life, and enhanced safety to protect you and those you care about.

Key features of EVOLTA/Alkaline

Long-lasting, safe, and reliable

Longer life over a wider current range

Panasonic batteries deliver long-lasting power in all kinds of appliances, from toys and remote controllers to digital cameras and torches.

* Results based on Panasonic in-house testing when compared with Panasonic alkaline and set to an index of 100 averaged across all discharge modes according to IEC standards. Conditions are averages for all test modes according to IEC standards.

Lasts longer in high-current applications

Panasonic alkaline batteries drive power-hungry devices longer.

Anti-Leak Protection technology vs. competitor products

We protect the people, equipment, and moments that are important to you using the industry’s most advanced leak protection technology. Improved materials and design prevent leakage due to over-discharge, excessive storage, or external damage.

Independent testing proves highest leak resistance

Independent testing by world-leading certifications laboratory Intertek has proven Panasonic alkaline batteries are the most resistant to leaks. Our new gas-suppressing formula combats leakage so effectively that not one of our products leaked during testing*.

* Thirty-six batteries comprising six models across four brands were tested at 60℃/90% and 80℃/90%. Test duration was three months using the cresol red-indicator method. Test conducted in 2013.

Outer Short-Circuit Protection

Panasonic’s outer short-circuit protection prevents batteries from bursting or malfunctioning due to accidental misuse (such as reverse connection).

Reserve Connection Test Comparison in a Four-Battery System

High impact resistance

Our batteries feature a stronger internal structure and a tougher outer coating than rival products, ensuring stable power delivery even after impact (such as being dropped).

Rate of Defective Conductivity After Dropping

* Rate of defective conductivity after being dropped from a height of approximately one meter. Testing conducted in-house.

Safe, eco-friendly design

Panasonic batteries do not contain mercury, protecting you and the environment during use and after disposal.

* Panasonic first developed and marketed mercury-free alkaline batteries in 1992.

Superior structural design and discharge performance

* Graphic represents AA battery.

Overall performance comparison

In low- or high-current applications in almost any electronic device, Panasonic alkaline batteries deliver the safest and most reliable energy for longer than any other comparable product.

* Graphic represents AA battery.

Key features of Manganese

Longer life, greater reliability, and better safety

Superior endurance in low-current applications

Panasonic manganese batteries last longer in low-current appliances such as remote controls, portable radios, and torches.

Endurance Comparison

* Results based on Panasonic in-house testing with Company B set to an index of 100 averaged across all discharge modes according to IEC standards.

Improved leakage resistance

We protect the people, equipment, and moments that are important to you with the industry’s most advanced leak protection technology. An improved design prevents leakage due to over-discharge or excessive storage.

A more reliable design

Some batteries can malfunction or burst if loaded incorrectly, such as in a reversed connection. Where competition products fail, Panasonic manganese batteries won’t burst when loaded in the wrong order.

Reverse Connection Test Comparison in a Four-Battery System

Greater consistency of quality

Our superior production control methods ensure more consistent quality across our entire battery family, reducing variations in stated capacity.

Comparison of Capacity Variation

Longer shelf life

You can depend on Panasonic manganese batteries to work even after long periods in storage. High-quality materials prevent degradation and ensure long-life stability before use.

* Results based on a Panasonic in-house survey. This is a numerical comparison made with Panasonic product set to an index value of 100.

Zero lead added!

Panasonic is among the first in the world to eliminate lead from its manganese batteries. As of 2014, these cells do not contain lead, cadmium, or mercury, protecting you during use and the environment after battery disposal. And thanks to premium technologies such as a specialized zinc-alloy can, they’re also more resistant to damage and corrosion.

Note: Production of manganese batteries with no lead, mercury, or cadmium commenced in April 2014 in our Polish and Indonesian factories.

High performance in harsh climates

Most batteries suffer a sharp drop in performance when used in extreme temperatures. Our batteries are designed to operate consistently in harsh climates in most regions of the world.

* Results based on a Panasonic in-house test with a 20°C index set to 100.

Panasonic manganese battery design and performance

Choosing the right battery

Differences in battery structures and capacities


For devices that use a high, continuous current
Alkaline dry batteries are able to produce a higher current than manganese dry batteries. This is because the electrolyte consists of potassium hydroxide, which is an alkaline-aqueous solution that enables a higher flow of current.



For devices with a low current load, such as remote controllers
Dry batteries basically consist of three materials: metal, metal oxide, and electrolyte. Manganese dry batteries use manganese dioxide for the positive electrode, zinc chloride (or ammonium chloride) for the electrolyte, and zinc for the negative electrode.


Our concept for primary batteries

The Power for happy Smile

Why choose Panasonic?

Power, safety, endurance, and value—four excellent reasons to refresh your appliances with Panasonic cells. For more than 90 years, we’ve been driving the battery industry forward with refined and improved cell designs that offer class-leading performance. In your digital camera, children’s toys, or in other everyday items such as remote controllers, you can rely on Panasonic for smooth power every day.

Panasonic in the energy field

More than 170 billion* batteries sold worldwide

Since Panasonic first began in-house production of dry batteries in 1931, we have shipped more than 170,000,000,000 cells to all corners of the globe. And while we continue to drive battery performance evolution forward, one thing hasn’t changed: our desire to provide clean, safe, affordable energy to people from all walks of life.

*As of March 2014.

Working to create safe, reliable, high-quality products

Research & Development
Thorough research into every aspect of battery design, from materials to production processes, is leading to more compact products delivering much higher levels of performance.

Stringent quality control programs and systems back our long experience and advanced production techniques. This results in products of a consistently higher quality—one of our main advantages in the marketplace.

Sales and Marketing
Thanks to our vast and experienced global sales and marketing network, we’re able to provide our customers with the products they need at the time they need them. It’s this kind of support that inspires confidence and loyalty.

Energy solutions for the future

Panasonic’s vision centers on the need to develop products that offer convenience, performance, and environmental sustainability. Tomorrow’s technology is already at work in our next-generation lithium-ion batteries for Tesla electric vehicles; in our development of wireless charging devices for mobile users; and in the products resulting from our investment in solar energy research.

Sharing technical expertise with the world

51 sites in 18 countries

Major production sites

  • Photovaltaic module
  • Dry batteries
  • Li-ion batteries
  • Li-ion batteries
  • Ni-MH batteries
  • Lead-acid batteries
  • Battery applied products
  • Lithium batteries
  • Rechargeable batteries for environmental friendly automobiles
  • Offices