Batteries

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A nickel–cadmium Varta barrel battery that has leaked onto the mainboard of a Korg Poly-61, causing massive corrosion to circuit board traces and legs of integrated circuits.

A battery is a self-contained device that converts chemical chemical energy into a direct current by way of a redox reaction. It consists of one or more cells, the composition of which determines whether the battery is disposable (primary) or rechargeable (secondary). Batteries are typically opposed to mains power as a source of electrical energy, although the two are often used in tandem to power components within a piece of equipment.

In the context of repairing equipment, batteries can be problematic due to their propensity for leaking.

Battery Operation

For more information, see this article's corresponding Wikipedia page: Electric battery.

Battery Types and Risks

Disposable

Zinc–Carbon

Alkaline

Rechargable

Nickel–Cadmium (Ni-Cd)

Nickel–Metal Hydride (Ni-MH)

Lithium