Varta lithium battery CR2/3AA 3V 1.35Ah with 3 soldering pins

The VARTA CR2/3AA with 3 solder pins (+2 pin / -1 pin) is a high-performance, industrially assembled 3-volt lithium primary battery. It has been developed for professional applications that require an extremely durable and reliable power source with a reverse polarity-protected connection type for PCB mounting. Based on lithium manganese dioxide technology (Li-MnO2), it offers a high energy density, extremely low self-discharge and is the ideal energy source for the original equipment (OEM) of long-lasting and low-maintenance electronic devices.

Highlights at a glance

• Reverse polarity-proof assembly: Equipped with 3 solder pins (+2 pin / -1 pin) for error-free and secure PCB mounting.
• Extreme durability: Can be stored for up to 10 years thanks to extremely low self-discharge.
• High energy density: Maximum energy in a compact design for long-lasting self-sufficiency.
• Wide temperature range: Reliable performance under extreme conditions from -40 °C to +85 °C.
• High capacity: 1.35 Ah for energy-intensive applications with long runtime requirements.

Reliable energy for long-term applications

The pre-assembled VARTA CR2/3AA is the preferred energy source for "fit and forget" applications where the battery is permanently soldered onto a printed circuit board. Its main area of application is the supply of memory modules (SRAM/CMOS backup) and real-time clocks (RTC) in industrial PCs and programmable logic controllers (PLCs). Furthermore, it is ideal for use in the metering industry (smart metering), in safety sensors, in the automotive sector and in medical technology.

Superior lithium manganese dioxide technology

Lithium manganese dioxide technology (Li-MnO2) is the key to the exceptional performance of this cell. It enables a high nominal voltage of 3 volts and an extremely low self-discharge rate of less than 1% per year at room temperature. This guarantees maximum service readiness even after many years of storage. The technology is also known for its high safety and reliability in industrial environments.

Developed for industrial integration

As an industrially pre-assembled cell, the CR2/3AA with 3 solder pins is optimised for efficient and process-safe automatic or manual assembly of printed circuit boards. The asymmetrical pin arrangement prevents assembly errors and ensures a permanently secure and vibration-resistant solder connection. With this cell, VARTA offers developers and manufacturers a reliable and easy-to-integrate platform for the development of long-lasting and low-maintenance products.
 

Features

FAQs about the VARTA lithium battery CR2/3AA with 3 solder pins

What does the designation "SLF +2Pin / -1Pin" mean?

"SLF" usually stands for "Solder Pin". The designation "+2Pin / -1Pin" describes the specific, asymmetrical arrangement of the solder pins: The positive pole is provided with two pins and the negative pole with one pin. This serves as mechanical reverse polarity protection during PCB mounting and increases process reliability in production.

What is the main advantage of this lithium battery?

The key advantage is the extremely long service and storage life of up to 10 years, combined with a very wide operating temperature range. The pre-attached, reverse polarity-proof solder pins also simplify the manufacturing process and increase the reliability of the end product.

Is this battery rechargeable?

No. This is a lithium primary battery. It must never be recharged under any circumstances. Attempting to charge is extremely dangerous and can lead to fire or explosion.

For which soldering methods is this pre-assembled cell suitable?

This cell is intended for hand and wave soldering. Use in the reflow soldering process is not recommended as the high temperatures can damage the cell. Please observe the manufacturer's processing instructions.

How must this battery be disposed of?

Batteries must not be disposed of with household waste. As an industrial battery, it is subject to the provisions of the Battery Act. Please take the empty battery to the designated industrial or municipal collection points to ensure proper and environmentally friendly recycling.