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Celestron PowerTank 7Ah
Celestron PowerTank 7Ah
Celestron PowerTank 7Ah
Celestron PowerTank 7Ah

Celestron PowerTank 7Ah

by Celestron
SKU CEL-18774
$104.95 - $104.95
$104.95
$104.95 - $104.95
$104.95
Price Match Policy!
  • 84 Wh portable rechargeable power supply
  • 12VDC @ 10A car battery adapter port for powering telescopes
  • Two 5VDC @ 1.5A USB ports for charging accessories
  • Built-in white LED spotlight and red lensed flashlight
  • Extreme operating temperature range of -40° to 140°F
  • Includes 10 ft car battery adapter cable
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Celestron PowerTank, 12v Power Supply

    The Celestron PowerTank, 12v Power Supply delivers 84 Wh of portable power, specifically designed to run any Celestron computerized telescope for hours of uninterrupted observing. Its 12VDC, 10A car battery adapter port connects directly to your mount via the included 10 ft cable, while two 5VDC, 1.5A USB ports keep your phone and other accessories charged in the field. Weighing 8.5 lbs, this unit is built for amateur astronomers, featuring a red lensed flashlight to preserve night vision and an extreme operating temperature range from -40° to 140°F.

    84 Wh Capacity for All-Night Telescope Operation

    The core of the PowerTank is its 84 Wh battery, engineered to keep your GoTo mount slewing and tracking from dusk until dawn. The primary 12VDC, 10A output provides ample current for even the most demanding computerized mounts, ensuring consistent voltage and reliable tracking. The unit recharges fully from flat in 16 hours using the included AC charger, making it easy to prepare for your next night out under the stars.

    Dual 1.5A USB Ports for Field Accessories

    Beyond powering your telescope, the PowerTank serves as a central charging hub for your electronic accessories. It features two separate 5VDC USB ports, each capable of supplying 1.5A of current. This allows you to simultaneously charge a smartphone running planetarium software and power a dew heater controller or other USB-powered device without draining your primary scope power.

    From -40°F Operation to Roadside Assistance

    Designed for real-world field conditions, the PowerTank functions across an exceptionally wide operating temperature range of -40° to 140°F. It includes an integrated red LED flashlight for setup and teardown that won't spoil your dark adaptation, alongside a powerful white LED spotlight for locating dropped equipment. As a versatile emergency tool, it also includes booster terminals for starting weak car batteries, making it a valuable accessory for remote observing sites.

    PowerTank 12v vs. Generic Lithium Power Stations: Designed for Astronomy

    While many modern lithium power stations offer higher capacity, the Celestron PowerTank is purpose-built for astronomy with features others lack. Generic power supplies often shut down under the low, intermittent power draw of a tracking mount, whereas the PowerTank is designed for it. Key astronomy-specific advantages include:

    • Tip-Positive 12V Port: The car battery adapter port is wired tip-positive, matching the standard for Celestron and other telescope mounts, preventing accidental reverse polarity damage.
    • Integrated Red Flashlight: Preserving night vision is critical. The built-in red light is a feature rarely found on general-purpose power banks.
    • Booster Terminals: The ability to jump-start a car is a practical safety feature for astronomers who travel to dark, remote locations.

  • How many hours can I run my Celestron Advanced VX mount with the PowerTank 12v?

    While exact runtime depends on slewing frequency and payload weight, the 84 Wh capacity of the Celestron PowerTank is typically sufficient to power a mid-size mount like the Advanced VX for a full night of observing (6-8 hours) under normal conditions.

    Can I charge my laptop from the Celestron PowerTank?

    No. The PowerTank does not have an AC inverter. The two USB ports provide 5VDC at 1.5A each, suitable for phones and small devices, but not powerful enough for a laptop. The main 12VDC port is intended for telescope mounts.

    Is the Celestron PowerTank 12v waterproof?

    No, the unit is not rated as weatherproof or dustproof. It should be protected from dew, rain, and excessive dust to prevent damage to the internal electronics and battery terminals.

    What is the purpose of the red light on the PowerTank?

    The red lensed LED flashlight is designed to preserve your night vision. When your eyes are adapted to the dark, exposure to white light causes your pupils to contract instantly, ruining your ability to see faint deep-sky objects. Red light has a minimal effect on dark adaptation, allowing you to read star charts or find accessories without losing your sensitivity to faint starlight.

    How long is the included telescope power cord for the PowerTank?

    The PowerTank comes with a 10 ft (3 m) car battery adapter cable. This generous length allows you to place the 8.5 lb battery pack on the ground or an accessory tray without worrying about the cord pulling on the mount as the telescope moves.

    Can I use the Celestron PowerTank to power a non-Celestron telescope?

    Yes, provided your telescope can be powered by a 12VDC source with a cigarette lighter-style plug and is wired tip-positive. The 10A output is sufficient for most commercial computerized mounts.

  • Battery Capacity 84 Wh
    Charging Input 15VDC @ 800mA
    Charge Time (from flat) 16 hours
    Telescope Power Port 12VDC @ 10A, Tip Positive (Car Battery Adapter Port)
    USB Port 1 Output 5VDC @ 1.5A
    USB Port 2 Output 5VDC @ 1.5A
    Light Panel White LED spotlight and red lensed LED flashlight
    Operating Temperature -40° - 140°F (-40° - 60°C)
    Telescope Power Cord 10 ft (3 m) long car battery adapter
    Strap Shoulder strap included
    Product Dimensions 12" x 9.5" x 5.5" (304.8mm x 241.3mm x 139.7mm)
    Product Weight 8.5 lbs (3.85 kg)
    Weather/Dust Proof No

    • PowerTank 12v Battery Pack

      × 1

    • AC Mains Charger

      × 1

    • Car Battery Adapter Cable (10 ft)

      × 1

  • Celestron 2-Year Warranty