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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Celestron PowerTank Lithium LT
Celestron PowerTank Lithium LT
Celestron PowerTank Lithium LT
Celestron PowerTank Lithium LT
Celestron PowerTank Lithium LT
Celestron PowerTank Lithium LT

Celestron PowerTank Lithium LT

by Celestron
SKU CEL-18763
$99.95 - $99.95
$99.95
$99.95 - $99.95
$99.95
Price Match Policy!
  • 73.3 Wh capacity provides hours of power for computerized telescopes
  • Regulated 12V DC output ensures stable voltage for sensitive electronics
  • Weighs only 1.4 lbs for ultimate portability
  • Fast 2100mA USB port charges smartphones and tablets
  • Recharges completely from flat in just 4 hours
  • Meets FAA regulations for carry-on baggage
2 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Celestron PowerTank Lithium LT

    The Celestron PowerTank Lithium LT packs 73.3 Wh of stable, continuous power into an ultra-portable 1.4 lbs unit designed specifically for modern computerized telescopes. It delivers a regulated 12V DC at up to 3000mA to your mount's drive motors via a 6.5 ft cable, while a separate 5V, 2100mA USB port keeps your smart devices charged. From a flat state, the entire power pack recharges in just 4 hours, ready for your next night of observing.

    73.3 Wh NMC Battery: Compact Power with a 4-Hour Recharge

    At the core of the PowerTank Lithium LT is a Lithium Nickel Manganese Cobalt Oxide (NMC) battery, a chemistry chosen for its superior longevity and safety over common alternatives. This 73.3 Wh power source is not only lighter and more compact than traditional lead-acid batteries but also offers a significantly longer life with more charge cycles. When the night is over, the included AC charger brings the battery back to full capacity in only 4 hours.

    • Advanced NMC Chemistry: Offers a longer shelf life and more charge cycles than common LiCoO2 batteries, with built-in overcharge and over-discharge protection for safer operation.
    • Extreme Temperature Tolerance: The battery is rated for operation in temperatures from -40° to 140°F, ensuring reliable power in a wide range of observing conditions.

    Regulated 12V DC Output: Protecting Your Mount's Electronics

    A telescope's sensitive electronics demand stable voltage. A drop in voltage can strain motors, cause tracking errors, and lead to electronic glitches that interrupt your session. The PowerTank Lithium LT integrates a voltage regulator to deliver a consistent 12V DC output at up to 3000mA, from a full charge down to the last moment before the battery is depleted. This stable power safeguards your equipment and ensures your mount performs exactly as it should, night after night.

    Field-Ready Design: 1.4 lbs Portability with Dual-Device Charging

    Engineered for use in the field, the PowerTank Lithium LT weighs just 1.4 lbs and measures 7.5" x 4" x 2". Use the included hook and loop strap to securely attach the unit to your tripod leg, keeping it off the ground and out of the way. While the 12V DC port powers your mount, a fast-charging 2100mA USB port can power your smartphone, tablet, or any other 5V accessory you use for planning or plate solving.

    PowerTank Lithium LT vs. Generic Power Packs: Why Voltage Regulation Matters

    Many consumer-grade lithium-ion batteries may advertise high capacity, but they were not designed for telescopes. These power packs often suffer from a rapid voltage drop-off; while they may start at 12V, the voltage quickly falls, diminishing your telescope's performance. The PowerTank Lithium LT was engineered by astronomers to solve this problem.

    • Against Generic Lithium-Ion: The PowerTank LT's built-in voltage regulator ensures a stable 12V output throughout its discharge cycle, something generic packs lack. This protects your investment and keeps your GoTo and tracking accurate.
    • Against Sealed Lead-Acid: Compared to older lead-acid technology, the PowerTank's NMC chemistry is dramatically lighter, smaller, and more efficient, making it far easier to transport to dark-sky sites.

  • How long will the PowerTank Lithium LT run my Celestron Advanced VX mount?

    The 73.3 Wh capacity is designed to power a typical computerized mount for a full night of observing. The exact runtime will vary based on how actively you are slewing the telescope and the weight of your optical tube, but it is sufficient for many hours of continuous tracking and GoTo operation.

    Can I use the PowerTank Lithium LT to power my telescope and charge my phone simultaneously?

    Yes. The PowerTank Lithium LT is equipped with two separate output ports: one 12V DC port with 3000mA for your telescope and one 5V USB port with 2100mA for charging smartphones, tablets, or other accessories at the same time.

    Is the 73.3 Wh capacity of the PowerTank Lithium LT approved for air travel?

    Yes, at 73.3 watt-hours, the PowerTank Lithium LT meets the current FAA limit of 160 Wh for lithium-ion batteries in carry-on baggage. It should not be placed in checked baggage. We recommend checking with your specific airline beforehand to confirm their policies.

    What makes the PowerTank Lithium LT better than a standard lead-acid battery?

    The PowerTank Lithium LT uses advanced NMC lithium-ion chemistry, which makes it significantly smaller, lighter (at just 1.4 lbs), and more efficient than a lead-acid battery of similar capacity. It also has a longer lifespan with more charge cycles and is safer to operate.

    Will the PowerTank Lithium LT work with my non-Celestron mount while observing Jupiter?

    Yes, it is compatible with any telescope mount that requires a 12V DC power source and uses a 5mm/2.1mm tip-positive barrel connector. The PowerTank can supply up to 3000mA, which is sufficient for most popular computerized mounts, whether you are observing Jupiter or deep-sky objects.

    What happens when the PowerTank Lithium LT runs out of power?

    The unit features an automatic shutoff to protect the battery from over-discharge. If the current draw is less than 250mA for 4 hours, it will also shut down to conserve power. This built-in protection ensures the longevity and safety of the battery.

  • Battery Specifications
    Battery Capacity 73.3 Wh
    Battery Chemistry Lithium Nickel Cobalt Manganese, Li(NiCoMn)O2
    Charging Input 16VDC @ 2000mA
    Charge Time (from flat) 4 hours
    Power Outputs
    Telescope Power Port 12V DC @ 3000mA, voltage regulated, 5mm/2.1mm tip positive jack
    USB Charging Port 5V DC @ 2100mA
    Features
    Auto Shutoff Threshold Less than 250mA for 4 hours
    Telescope Power Cord 6.5 ft (2 m) with connector for Celestron telescopes
    Tripod Strap 50.8mm (2") wide hook and loop strap
    Physical & Environmental
    Product Dimensions 7.5" x 4" x 2" (190.5mm x 101.6mm x 50.8mm)
    Product Weight 1.4 lbs (0.63 kg)
    Operating Temperature -40°F to 140°F (-40°C to 60°C)
    Weather/Dust Proof No

    • PowerTank Lithium LT Battery Pack

      × 1

    • Telescope Power Cable (6.5 ft / 2m)

      × 1

    • Strap for Tripod Leg

      × 1

    • AC Charger

      × 1

  • Celestron 2-Year Warranty