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batteries & power supplies

Celestron 12V PowerTank Lithium LT - 18763

January Clearance Sale!
January Clearance Sale!
Celestron   ——   SKU: CEL-18763
old price $104.00 – 10% savings
$93.00 CAD
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Power Your Telescope for Up To 8 Hours
with the Celestron PowerTank Lithium LT!

Power your telescope anywhere with the PowerTank Lithium LT, the smallest and lightest lithium-ion power pack Celestron makes. This 12V power supply is a must-have for your telescope and accessories, camping gear, emergency kit, and more.

Stable Power Designed with Telescopes in Mind

The Celestron PowerTank Lithium LT is built with Lithium Nickel Manganese Cobalt Oxide [LiNiMnCoO2] or NMC technology, which delivers a steady charge over long periods and requires less maintenance than a traditional sealed lead-acid battery.

Unlike other lithium-ion power packs in this price range, the PowerTank Lithium LT was designed for astronomers by astronomers—specifically for the unique needs of computerized telescopes.

As many amateur astronomers have learned the hard way, telescope electronics are very sensitive to voltage. Powering a telescope with lower-than-optimal voltage can cause the motors to strain with heavier loads and can even cause the electronics to glitch. The Celestron PowerTank Lithium LT uses a built-in voltage regulator to ensure that it delivers at least 11.8 volts for most of the life of the battery, until the battery is depleted and shuts off.

You may see competitor batteries claiming that they hold enough watt-hours of electricity to power your telescope for hours. The technology in these batteries was originally developed to power much lower-voltage electronics, such as home CPAP machines. Although the voltage actually being delivered starts off at 12V, it diminishes rapidly, impacting your telescope’s performance and becoming functionally useless within about 2-3 hours.

Celestron’s telescope engineers worked hand-in-hand with battery suppliers on PowerTank Lithium LT to ensure that it does not experience this dropoff in performance. The built-in voltage regulator ensures a stable 12V output for up to 8 hours, regardless of the amount of charge left in the battery. This keeps your telescope’s electronics safe and performing their best, so you can focus on astronomy.

Specifications for the Celestron PowerTank Lithium LT
Power Supply

Battery Capacity 73.3 Wh
Charging Input 16VDC @ 2000mA
Charge Time (from flat) 4 hours
Telescope Power Port 12V DC @ 3000mA, voltage regulated, 5mm/2.1mm tip positive jack
Car Battery Adapter Port None
USB Charging Port 1 Output 5V DC @ 2100mA
Auto Shutoff Threshold Current Less than 250mA for 4 hours
Operating Temperature -40°F - 140°F (-40°C - 60°C)
Light Panel None
Weatherproof/Dustproof No
Telescope Power Cord 6.5 ft (2 m) with connector for Celestron telescopes
Strap 2" wide hook & loop strap for attachment to tripod leg
Product Dimensions 190.5mm x 101.6mm x 50.8mm (7.5" x 4" x 2")
Product Weight 1.4 lbs (.63 kg)
Included Items Battery pack (Lithium nickel cobalt manganese, Li(NiCoMn)O2) | Telescope power cable (2m/6.5 feet long) with 5.5mm barrel connectors | 60mm wide strap for tripod leg | AC charger
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