Battery Contacts

Battery Springs
& Battery Contacts

  • Round Wire & Strip Material
  • Commonly-Stocked Nickel-Plated Carbon Steel Battery Spring Wire, Sizes .020 inches (.5mm) & .024 inches (.6mm)
  • Produced In Custom Materials

Battery Contact Design

A battery contact spring typically must perform two roles - to help provide pressure to hold batteries in place as well as to conduct electrical current from the batteries to the desired circuit. The force exerted by the spring on the battery or batteries often affects the electrical conductivity, especially where surface oxidation on the battery contacts may be present. Corrosion and oxidation, as well as the battery spring's suitability for specific soldering processes, should be considered during design.

Newcomb Spring will work with you to create an effective battery contact design for your application. With state-of-the-art equipment, a highly skilled team of spring-makers and our vast specialty material capabilities, our design assistance services can help save you time and cost on your battery springs and battery contacts.


Materials for Battery Contacts

Newcomb Spring produces battery springs and battery contacts using a wide array of materials, and manufacturers parts to meet your custom configurations. While Newcomb Spring facilities maintain an inventory of wire specially formulated for battery springs and battery contacts, other sizes and materials can also be supplied domestically, allowing us to respond quickly to your prototype and production requirements.

Materials used in the production of battery springs and battery contact components are most commonly made from the copper alloys, and nickel plated carbon steel.


Generally, materials with higher mechanical properties have lower electrical conductivity. Often they are used for battery contact manufacturing where cost is a major consideration and where the needed conductivity can be achieved with a pre-plated carbon steel, such as music wire, nickel coated or with a subsequent plating process. When high conductivity is required, as in military weapon applications and computers, the designer will want to consider battery contact materials with higher copper content, such as beryllium copper, phosphor bronze or spring brass. In certain applications, battery contacts  and battery springs are sometimes plated in tin, silver or gold plated-remove as a subsequent operation, which increases conductivity even more.



View Battery Contact Videos

Electrical conductivity for various materials used in battery contacts

Material Resistivity Conductivity
Silver 1.59x10-8 6.30x107
Copper 1.68x10-8 5.96x107
Gold 2.44x10-8 4.10x107
Aluminum 2.82x10-8 3.5x107
Calcium 3.36x10-8 2.98x107
Tungsten 5.60x10-8 1.79x107
Zinc 5.90x10-8 1.69x107
Nickel 6.99x10-8 1.43x107
Lithium 9.28x10-8 1.08x107
Iron 1.0x10-7 1.00x107
Platinum 1.06x10-7 9.43x106
Tin 1.09x10-7 9.17x106
Stainless steel 6.9x10-7 1.45x106

Small Battery Contacts

Battery Contact Order Information

As with all Newcomb Spring-produced parts, we can custom manufacture any battery contact or battery spring to fit your needs. As a trusted battery contact manufacturer, we have offered great prices, high quality and total customer satisfaction for more than a century.

To experience the Newcomb Spring difference for yourself, contact us today, or request a battery contact manufacturing quote online.

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  •   770-981-2803   •  •   © Newcomb Spring Corp.