Varta NiMH button cell V40H 1.2V 40mAh with solder pins, upright

This VARTA V40H is an industrially assembled, rechargeable nickel-metal hydride (NiMH) button cell, optimised for upright and space-saving mounting on printed circuit boards (PCBs). With a capacity of 40 mAh at 1.2 V, it is the ideal backup power source for real-time clocks (RTC) and SRAM memory. The assembly with two solder pins at a defined distance enables simple, safe, and process-stable integration into industrial manufacturing.

Highlights at a glance

• Space-saving installation: The upright design with solder pins minimises the space required on the circuit board.
• Rechargeable energy: Reliable NiMH technology for high cycle stability and long service life.
• Backup optimised: Perfect for long-lasting buffering of real-time clocks (RTC) and memory (SRAM).
• Industrial assembly: Complete with solder pins for efficient and process-reliable handling.
• OEM component: Ideal for direct integration in the volume production of professional electronics.

Reliable energy for professional electronics

The assembled VARTA V40H is the optimal choice for a wide range of professional and industrial applications where space is at a premium. Its main function is to safeguard data in real-time clocks and volatile memory in the event of power failure. It is used in industrial computers, compact control modules, medical technology, intelligent metering systems (smart metering) and communications technology.

Robust nickel-metal hydride technology

VARTA's proven NiMH technology stands for high reliability and safety. The V40H is designed for the typical requirements of backup applications, especially for lifelong trickle charging over many years. It offers outstanding charge and discharge efficiency, high cycle life, and shows no undesirable memory effect. Compared to primary batteries, it offers a sustainable and low-maintenance solution.

Efficiency and safety in the system

As an industrially assembled component, the VARTA V40H undergoes the strictest quality controls. The professional welding of the solder pins to the cell guarantees a permanently secure and electrically faultless connection. This gives developers and manufacturers a stable and reliable component that is suitable for automated placement and for the reflow soldering process (under certain conditions), thereby increasing the reliability of the end product.
 

Features

FAQs on the assembled VARTA NiMH button cell V40H

What does the specification "in KM -/++8mm upright" mean?

This specification describes the customer-specific assembly of the cell. "Upright" means that the cell is mounted vertically on the PCB. "KM" often stands for contact material, in this case the solder pins. "-/++" describes the arrangement of the poles, and "8mm" is the typical distance between the two solder pins, which allows integration into an existing circuit board layout.

What are the advantages of upright mounting?

Upright (vertical) mounting minimises the required footprint on the circuit board compared to horizontal mounting. This is a decisive advantage in very compact devices where every millimetre counts.

Is this cell suitable for charging with external chargers?

No, this assembled industrial cell is designed for permanent installation and charging via a defined charging circuit within a device. It is not intended for handling by end-users or for use in standard chargers.

For which soldering methods is this assembled cell suitable?

The cell with solder pins is suitable for hand and wave soldering. Use in the reflow soldering process is only possible under strictly controlled temperature conditions, as high temperatures can damage the cell. Please follow the manufacturer's processing instructions.

How must this battery cell be disposed of?

Rechargeable batteries must not be disposed of in household waste. As an industrial battery, it is subject to the regulations of the Battery Act. Please hand over the used rechargeable cell to the industrial or municipal collection points provided for this purpose to ensure appropriate and environmentally friendly recycling.