Battery Contacts

Batteries have a positive and negative end that need connecting to an electrical circuit. In cylindrical batteries, the positive end consists of a small projection whilst the negative end has a flat base. Both ends of the battery need to mate with contacts, which are metal strips or springs that are found in battery holders or compartments. The battery contacts are connected by wire leads to the electrical circuitry within the device, so that when the terminals press against them, an electrical connection is made.

What do battery contacts look like?

The most common types of terminal found in battery holders are coiled springs or spring contacts and flat tab contacts. Sometimes a battery is wired directly to a device rather than inserted into a holder. For these applications battery contacts are available which are designed for soldering directly onto the PCB. Once the contact is soldered onto the PCB the battery is then connected directly on to it.

Battery contacts can have a fixed or flexible design. Flexible contacts such as leaf spring contacts have a rugged design and allow for the slight expansion of the battery on discharge and for any other battery movement that may be caused by shock and vibration. This feature enables a reliable connection to be maintained as well as being able to accommodate a range of battery lengths.

When are battery contacts used?

Battery contacts are designed for use with a wide range of battery sizes and are available as single contacts for use with single batteries or double contacts for two batteries. Battery straps with snap-on press stud contacts are specially designed for use with 9V PP3 batteries. Battery contacts are made from different materials with a range of plating materials, expanding their suitability across many industries and applications.


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Description Price For Battery Size Number of Cells Terminal Contact Material Terminal Contact Type
RS Stock No. 410-1494
Mfr. Part No.291
BrandKeystone
SGD0.615
Each (In a Pack of 10)
units
A, AA 1 Spring Steel Button & Leaf Spring
RS Stock No. 167-3225
Mfr. Part No.70AAJ-4-F0
BrandBourns
SGD1.719
Each (In a Box of 30)
units
- - - -
RS Stock No. 327-7556
Mfr. Part No.211
BrandKeystone
SGD0.148
Each (In a Bag of 10)
units
A, AA - Spring Steel Coil Spring
RS Stock No. 185-4671
BrandRS PRO
SGD0.68
Each
units
AAA - Nickel Plated Spring Steel -
RS Stock No. 175-6071
Mfr. Part No.MP-TSN
SGD8.49
1 Bag of 10
Bag(s)
9V 1 Brass Plug in
RS Stock No. 175-6069
Mfr. Part No.MP-1SN
SGD7.28
1 Bag of 10
Bag(s)
9V PP3 1 Brass Plug in
RS Stock No. 175-6070
Mfr. Part No.MP-1LN
SGD8.30
1 Bag of 10
Bag(s)
- 1 Brass Plug in
RS Stock No. 185-4775
BrandRS PRO
SGD1.04
Each
units
9V - - -
RS Stock No. 185-4672
BrandRS PRO
SGD0.70
Each
units
AAA - - -
RS Stock No. 324-7325
Mfr. Part No.5224
BrandKeystone
SGD0.335
Each (In a Bag of 10)
units
A, AA 1 Steel Button
RS Stock No. 410-2548
Mfr. Part No.238
BrandKeystone
SGD0.274
Each (In a Pack of 10)
units
AAA, AAAA, N 1 Spring Steel Button
RS Stock No. 205-0057
Mfr. Part No.629
BrandKeystone
SGD2.74
Each (In a Pack of 10)
units
A23, AAA, N 1 Spring Steel Coil Spring