9V battery Varta E-Block Longlife-EXTRA (model 4122 / 04122101111)

Varta 9V E-Block Longlife-EXTRA is a general-purpose 9-volt alkaline battery designed to deliver steady voltage and reliable power for a wide range of 9V devices. Engineered for both intermittent and continuous use, this battery provides long-lasting performance for household and professional applications such as smoke detectors, testing instruments, portable radios and other electronic devices that require a dependable 9V supply.

Advantages

The battery offers stable output voltage and consistent performance over its service life. Its alkaline chemistry supports longer shelf life and better energy retention compared with basic zinc-carbon cells, reducing the need for frequent replacements. The compact E-block format is compatible with a wide variety of devices and provides reliable contact stability in common battery clips and holders.

Key specifications

• Nominal voltage: 9 V
• Chemistry: alkaline
• Cell format: E-Block (9V rectangular)
• Typical use: intermittent and continuous applications
• Compatible with standard 9V clips and battery holders

How to use

Insert the battery into the device following the polarity indicators on the battery compartment or connector. Ensure connectors are clean and correctly aligned before closing the compartment. For devices used intermittently, remove the battery if the device will be stored for an extended period to avoid leakage. Replace the battery when device performance degrades or when test indicators show low battery.

Recommendations

Store unused batteries in a cool, dry place away from direct sunlight and extreme temperatures. Do not attempt to recharge, disassemble, short-circuit, or expose the battery to fire. Dispose of used batteries according to local regulations and recycling guidelines to minimize environmental impact.