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Black rectangular portable power unit with carry handle and red flashlight attached

Celestron

Celestron 18777 PowerTank 17 portable power supply

SKU CH-8DVH-FVFZD MPN 18777

A portable 17 amp-hour rechargeable power supply with 12 V DC outputs, a removable red filtered flashlight, built-in AM/FM radio.

  • TypeTelescopes
  • AccessoryAdapters
  • ColorBlack
  • Features17 amp-hour power supply for your Celestron telescope 2 x 12
  • 17 amp-hour capacity powers telescopes through extended observing sessions
  • Two 12 V DC car-jack sockets run mount and accessories simultaneously
  • Removable red-filtered flashlight preserves dark-adapted vision while reading charts
  • Built-in AM/FM radio and siren provide emergency communication and alerts
  • Booster terminals jump-start weak car batteries for roadside assistance

Portable 17 Ah telescope power pack

The Celestron 18777 PowerTank 17 is a rechargeable 17 amp-hour power supply built for astronomers who need reliable energy during long observing or imaging sessions away from mains electricity. It delivers 12 V DC through two car-jack sockets plus 3 V, 6 V and 9 V outputs, and includes a removable red-filtered flashlight that preserves dark adaptation while you handle charts and accessories.

Replaces disposable batteries and fixed outlets

This unit replaces single-use battery packs and the need for an AC outlet at remote dark-sky sites, making it worth the jump when sessions regularly exceed the runtime of smaller packs or when you want a single device that also jump-starts a weak car battery via the booster terminals. It is not suited for users who only observe from a powered observatory or who need higher voltage outputs for non-12 V equipment.

Sustained output for all-night runs

The 17 Ah capacity is designed to maintain steady 12 V delivery throughout an entire night of tracking and camera operation rather than fading after a few hours like smaller packs. The built-in LED spotlight, AM/FM radio and siren remain available without draining the reserve needed for the telescope, so the pack supports both the primary load and emergency features continuously until morning.

Highlights

  • 17 amp-hour capacity powers telescopes through extended observing sessions
  • Two 12 V DC car-jack sockets run mount and accessories simultaneously
  • Removable red-filtered flashlight preserves dark-adapted vision while reading charts
  • Built-in AM/FM radio and siren provide emergency communication and alerts
  • Booster terminals jump-start weak car batteries for roadside assistance

Specifications

BrandCELESTRON
Model18777
TypeTelescopes
AccessoryAdapters
ColorBlack
Features17 amp-hour power supply for your Celestron telescope
2 x 12V DC output car jack socket
DC 3, 6, 9V output jacks
Built-in AM/FM Radio and Siren
Removable red filtered flashlight with magnetic back
Energy efficient LED spotlight
Handy jump-start system
Built-in circuit breaker for safety
Cigarette lighter adapter included
Switchable 110v-220v AC adapter
Shipping weight3.72 kg
Package size254 × 102 × 25 mm

Questions about this item

What size car-plug sockets does the PowerTank 17 have for its 12 V outputs?

The PowerTank 17 provides two standard 12 V DC car jack sockets that accept common cigarette-lighter style plugs.

Which charging step is most often missed when setting up the PowerTank 17 for the first time?

Charge the unit fully using the included AC adapter before the first observing session; the internal battery ships partially discharged.

What ongoing care does the sealed battery inside the PowerTank 17 require?

Recharge the PowerTank 17 after every use and top it up every three months during storage to keep the 17 amp-hour battery healthy.

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