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Glossary | Telescope accessories | Equipment | DC power plug

This means a plug for the cigarette lighter socket in a car.

Most cars have a 12V socket for connecting external devices to the on-board power supply.

Generally, portable batteries, known as powertanks, have a DC power plug connection. Since powertanks are a very popular way of supplying power to an astronomical mount, a cable with a DC power plug is often included in the scope of delivery, or is at least available as an optional accessory.