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.

PegasusAstro
Power Supply 12V/10A Europe 2.1mm
$ 83.00
ready for shipping in 24
h

ZWO
External power supply, 12V 5A
( 1 / 5 )
RRP:
$ 62.00
RRP:
$ 62.00
Our price:
$ 52.00
ready for shipping in 3-5
weeks

Baader
Outdoor Telescope Power switching power supply, 12.8V / 1.5A 19W with angle plug
$ 29.90
ready for shipping in 24
h

Baader
60W / 12.8V / 5A outdoor power cable
( 5 / 5 )
$ 72.00
ready for shipping in 24
h

Pierro Astro
Power Supply 12V 7A
$ 37.90
ready for shipping in 24
h

Meade
Power pack 230V / 12V 5A
$ 104.00
ready for shipping in 24
h

PegasusAstro
Power pack XT60 (High Current)
$ 136.00
ready for shipping in 24
h

Omegon
Anderson connector power supply
RRP:
$ 34.90
Our price:
$ 29.00
ready for shipping in 24
h

PrimaLuceLab
Power pack for the EAGLE 14A control unit
$ 205.00
ready for shipping in 24
h

Bresser
Power pack 230V / 12V 2A
$ 40.90
ready for shipping in 1-2
weeks

PegasusAstro
Power Supply 12V 10A EU XT60 (for UPB v2)
$ 76.00
ready for shipping in 24
h

iOptron
Power pack AC Adapter 5A
$ 73.00
ready for shipping in 24
h

DayStar
Quark Universal AC Power Supply
$ 83.00
ready for shipping in 24
h

Bresser
Power pack RCX LX200
( 5 / 5 )
$ 62.00
ready for shipping in 24
h

PegasusAstro
Power Supply 12V/10A UK 2.1mm
$ 83.00
ready for shipping in 1-2
weeks

Skross
Power pack Travel adapter World to Europe
$ 17.90
ready for shipping in 24
h

PegasusAstro
Power Supply 12V/10A UK 2.5mm
$ 83.00
ready for shipping in 1-2
weeks

PegasusAstro
Power Supply 12V/10A Europe 2.5mm
$ 83.00
ready for shipping in 1-2
weeks

TS Optics
Power supply 12V/3A
( 5 / 5 )
$ 45.90
ready for shipping in 3-7
days

Lunatico
AC/DC switching power supply 12V/4A
$ 28.90
ready for shipping in 24
h

Omegon
Camera Power Supply 12V/3A
$ 29.90
ready for shipping in 24
h

Lunatico
Power supply, 15V/1A
RRP:
$ 24.90
Our price:
$ 23.90
ready for shipping in 24
h

Skross
Power pack Europe to USA travel adapter
$ 16.90
ready for shipping in 24
h

Bresser
Power pack 12V 2A
$ 52.00
ready for shipping in 1-2
weeks

Skross
Power pack Europe to UK travel adapter
$ 17.90
ready for shipping in 24
h

No Name
USB power supply with 2m extension
$ 11.90
ready for shipping in 24
h

Bresser
Power pack 230V / 6V 2A
$ 31.90
ready for shipping in 24
h

Pierro Astro
12V 2A Power pack for small instruments
$ 25.90
ready for shipping in 1-2
weeks

Meade
Power pack 230V / 12V 5A
RRP:
$ 120.00
Our price:
$ 115.00
ready for shipping in 24
h

QHY
External power supply, 12V 5A
$ 63.00
ready for shipping in 1-2
weeks

Losmandy
Gemini System Power Supply
$ 177.00
ready for shipping in 6-10
weeks

Vixen
Power pack Sphinx 12V / 3A
$ 136.00
ready for shipping in 24
h

Geoptik
Power Supply for Power Hub Varius
$ 303.00
ready for shipping in 3-5
weeks

PegasusAstro
Power Supply 12V/10A USA 2.1mm
$ 94.00
ready for shipping in 1-2
weeks

Lunatico
Plug-in power supply, 15V/2A
$ 28.90
ready for shipping in 24
h

PegasusAstro
Power Supply 12V/10A USA 2.5mm
$ 83.00
ready for shipping in 1-2
weeks