There are basically two options for supplying power to astronomical mounts and other equipment: power supplies or batteries.
A power supply provides constant voltage for an unlimited period of time. It is therefore the first choice for a stationary operation in the garden, on the patio or the balcony. However, batteries are required for mobile astronomy. These are often also called powertanks.
Omegon
universal power supply with 12V/6A cigarette lighter socket
$ 39.90
ready for shipping in 24
h
Omegon
Anderson connector power supply
$ 29.00
ready for shipping in 24
h
Omegon
Power Hub C28 3x 12V + 4x USB
$ 19.00
ready for shipping in 24
h