Brand: Celestron

Celestron PowerTank Lithium (18771)


Brand: Celestron

Celestron PowerTank Lithium (18771)


This is a handy, rechargeable lithium battery pack. It'll last through even the longest observing sessions. It's a great way to power your telescope anywhere and everywhere.
  • Portable power pack for your computerized Celestron telescope using Lithium-Iron Phosphate (LiFePO4) chemistry
  • Powers your telescope for up to 10 hours
  • Smaller, lighter, safer, and easier to maintain than lithium-ion and sealed lead acid designs
  • Up to 2000 charge cycles – four times more than lithium-ion and 7 times more than sealed lead-acid designs
  • Un-recharged shelf life of up to 10 years – 3 times better than lithium-ion and 10 times better than sealed lead-acid designs
  • Environmentally friendly – Does not use toxic heavy metals
  • Battery shuts off automatically when insufficient current flow is detected to prevent you from inadvertently draining your battery
$251.95 CAD

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$251.95 CAD

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Product Description

The PowerTank Lithium keeps the charge going for the astronomer on the go. The Lithium-Iron Phosphate (LiFePO4) battery chemistry has significant advantages over other battery chemistries. It will power any computerized mount.

Keep your telescopes, smartphones, tablets, GPS systems, cameras and other USB-powered devices as active as you are with PowerTank Lithium—the ideal outdoor portable-charging solution for your electronic gear.

What's in the Box

  • Battery pack
  • AC mains charger
  • Power cord for Celestron telescopes
  • Strap for attaching to tripod | Strap for hanging


Battery Capacity 84.4 Wh
Charging Input 16VDC @ 2000mA
Charge Time (from flat) 4 hours
Telescope Power Port 12VDC @ 3000mA, Tip positive
Car Battery Adapter Port None
USB Charging Port 1 Output 5VDC @ 1000mA
USB Charging Port 2 Output 5VDC @ 2100mA
Auto Shutoff Threshold Current (12V Port) - Less than 250mA for a long period of time
Operating Temperature -4°F - 140°F (-20°C - 60°C)
Light Panel Red or White with two brightness settings for each color
Weather Proof/Dust Proof IP-65 rating
Telescope Power Cord 6.5 ft (2 m) with connector for Celestron telescopes
Strap 2" wide hook and loop strap for attachment to tripod leg and a 10" hanging strap
Product Dimensions 190.5mm x 76.2mm (7.5" x 3")
Product Weight 2.25 lbs (1.02 kg)

Customer Reviews

Based on 7 reviews
Powered tank review

It seems to work OK although I had it charged in forever and it seemed like only three of the lights came on, but it’s kind of difficult because it makes the fourth light look like it’s on, maybe it is, but it seems to work OK

As for the Oxygen three filter, I haven’t had a chance to use it yet


Keeps my scope running, and can charge my phone in a pinch. Would buy again.


Works OK

Celestron Power Tank Lithium 18771

I am extremely pleased with my purchase of the Celestron Power Tank Lithium! Compared to battery packs of the past, it is much smaller, lighter, easier to handle and safe to use. I have been observing the night sky for many years now, and would highly recommend the Celestron Power Tank Lithium.


It was great, quick delivery

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