How to make battery spring?

Material: Spring steel, stainless steel, heating wire, nickel-plated steel wire, etc.

Battery Springs, anode spring, cathode spring

The battery spring is the force of compression, so that the battery is not easy to loosen.

Usually designed the positive and negative.

The battery spring needs to have good electrical conductivity.

Nickel-plated wire is usually used because of good electrical conductivity.

Often used in electronic products and home appliances, fishing products, toys, etc.

Use for electric conduction.