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Cegasa Air-Alkaline Batteries

Cegasa is mostly known for its Air-Alkaline batteries. Since it was founded in 1934, Cegasa Portable Energy S.L.U. has grown into an internationally respected company, with 4 production companies and 15 international subsidiaries.


The products of Cegasa



The Cegasa products are available in more than 60 countries on 5 continents. Cegasa has become a major player in the field of air depolarization. Cegasa has thus developed an innovative technology: Zinc Air-Alkaline. This innovation gives the battery a number of technical advantages: high energy density and high output voltage and stability throughout the duration of the discharge. In addition, this battery technology is resistant to all kinds of weather conditions and produced free of heavy metals.


Benefits of Zinc Air-Alkaline in short:

  • High energy density
  • Low self-discharge
  • High output voltage
  • Constant output voltage (less than 2% variation)
  • Temperature range from -20ºC to + 50ºC
  • Resistant to humidity (25-85% RH)
  • Durable: Free from heavy metals


Zinc Air-Alkaline

The batteries are made with a special manganese dioxide cathode formulated by Cegasa and continuously regenerated with oxygen from the air. This means that the cells use a minimal amount of active cathodic material compared to other alkaline batteries from other manufacturers. The big advantage is that by storing a larger amount of anode material, they have more power, which means that Cegasa's Zink Air-Alkaline batteries have the highest capacity on the market. Also, the battery only becomes active after removing a sticker, this ensures that the Cegasa batteries have a very long shelf life.

Cegasa Zinc Air battery composition

The composition of a Cegasa Zinc Air battery


Constant output voltage = constant performance

Cegasa technology ensures that the output voltage is determined less than 2%, regardless of the state of charge (SoC). This means that in applications such as signaling, the light intensity is constant over the entire battery life. The light intensity does not decrease when the battery is almost empty. Constant output voltage means constant performance throughout the battery life, improving efficiency and replacing the number of batteries, minimizing environmental impact.


Cegasa Zinc Air battery discharge curve

Discharge curve of a Cegasa Zinc Air battery


Excellent Energy Density

Cegasa's unique formula makes it possible to provide a battery with excellent energy density. A battery that has up to 5 times more power at the same volume and can last up to 8 times longer. The high output voltage stability ensures that regardless of the discharge of the battery, the power in the battery is used to the maximum. Where other battery technologies no longer supply enough voltage, even if they have no energy, so they waste up to 30% of the battery power.


Energy density compared to other Air-Alkaline batteries

Cegasa's energy density relative to other Air-Alkaline batteries


Applications of Cegasa batteries

These properties ensure that the Cegasa Zink Air batteries are widely used in the rail industry, maritime industry, IoT and telecommunications, road signs and parking meters.


Different applications


Cegasa Zinc Air Alkaline is widely used in:

  • Emergency lighting (rail and traffic)
  • Railroad crossings
  • Electronic road signs
  • Mobile warning systems
  • Mobile LED devices
  • Signal lighting (maritime)
  • Parking meters


Our battery range

At Elfa we have a very wide range of Cegasa batteries, each with unique properties. An example is the 6V battery shown below.

Cegasa Zinc Air-Alkaline

Cegasa Zinc Air-Alkaline batt 6V 45Ah


For an overview of Cegasa's offer, click the button below. However, not all Cegasa products are listed in our webshop, but these are possible on request. Of course you can contact us for questions about one of the many batteries in our range.


Product Range


If you would like further advice in choosing a battery technology or advice in choosing a Cegasa battery, you can contact the Elfa specialists. More than 100 years of energy storage experience is available here, of which Cegasa batteries are an important part. Fill in your details in the form below, we will then contact you.


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