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

Meade
Power pack 230V / 12V 5A
Our price:
RRP:
$ 122.00
$ 117.00
ready for shipping in 24
h

Meade
Power pack 230V / 12V 5A
$ 106.00
ready for shipping in 24
h

Bresser
Power pack RCX LX200
$ 64.00
ready for shipping in 24
h

Skross
Power pack Reiseadapter World to Europe
$ 15.90
ready for shipping in 24
h

DayStar
Quark Universal AC Power Supply
$ 85.00
ready for shipping in 24
h

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

Baader
Outdoor 60W / 12.8V / 5A power mains adapter
( 5 / 5 )
$ 73.00
ready for shipping in 1-2
weeks

Skross
Power pack Reiseadapter Europe to USA
$ 15.90
ready for shipping in 1-2
weeks

Lunatico
Power supply, 12V/2A
$ 24.90
ready for shipping in 1-2
weeks

Watec
Power pack WAT-SWI12-12 mains adapter
$ 35.90
ready for shipping in 24
h

Skross
Power pack Reiseadapter Europe to UK
$ 15.90
ready for shipping in 24
h

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

PegasusAstro
Pocket Powerbox Advance GEN2
$ 410.00
ready for shipping in 24
h

Lunatico
Power supply, 15V/1A
$ 24.90
ready for shipping in 24
h

Bresser
Power pack 230V / 12V 2A
$ 41.90
ready for shipping in 24
h

TS Optics
Power pack 12W 1A USB
$ 23.90
ready for shipping in 1-2
weeks

Skross
Power pack Reiseadapter World to Europe USB 1.0
$ 29.90
ready for shipping in 24
h

PegasusAstro
Power Supply 12V/10A Europe 2.1mm
$ 69.00
ready for shipping in 24
h

ZWO
External power supply, 12V 5A
Our price:
RRP:
$ 64.00
$ 53.00
ready for shipping in 24
h

iOptron
Power pack AC Adapter 5A
$ 74.00
ready for shipping in 24
h

Artesky
WandererBox Lite V2
$ 170.00
ready for shipping in 3-5
weeks

Bresser
Power pack 12V 2A
$ 53.00
ready for shipping in 24
h

Pierro Astro
Power pack 1500mA Mehrspannungsnetzteil
$ 26.90
ready for shipping in 1-2
weeks

Artesky
WandererBox Plus V2
$ 320.00
ready for shipping in 3-5
weeks

Pierro Astro
Power pack 2250mA Mehrspannungsnetzteil
$ 26.90
ready for shipping in 1-2
weeks

Pierro Astro
Power pack 5V 3A Netzteil mit USB Typ-C Kabel
$ 12.90
ready for shipping in 1-2
weeks

Pierro Astro
Power pack Netzteil 12V 7,5A
$ 38.90
ready for shipping in 24
h

Pierro Astro
Power pack 12V 2A Netzteil für kleine Instrumente
$ 21.90
ready for shipping in 1-2
weeks

Pierro Astro
Power pack 1500mA Multi-Voltage-Netzteil
$ 26.90
ready for shipping in 24
h

TS Optics
Power supply 12V/3A
( 5 / 5 )
$ 48.90
ready for shipping in 1-2
weeks

Lunatico
AC/DC switching power supply 12V/4A
$ 26.90
ready for shipping in 24
h

PegasusAstro
Power Supply 12V/10A Europe 2.5mm
$ 69.00
ready for shipping in 1-2
weeks

PegasusAstro
Power Supply 12V/10A UK 2.1mm
$ 69.00
ready for shipping in 24
h

PegasusAstro
Power Supply 12V/10A UK 2.5mm
$ 69.00
ready for shipping in 1-2
weeks

PrimaLuceLab
Power pack Netzteil für die Steuereinheit EAGLE 14A
$ 245.00
ready for shipping in 1-2
weeks