The PowerTank Lithium LT is Celestron’s most compact and lightweight lithium power solution—ideal for powering your computerised telescope, as well as your other portable electronics during camping, travel, or emergency use. Despite its size, it delivers stable, regulated power specifically engineered for astronomy applications.
Purpose-Built for Astronomers
Unlike generic power packs, the PowerTank Lithium LT was designed from the ground up to meet the unique demands of telescope electronics. At the heart of this unit is NMC battery technology (Lithium Nickel Manganese Cobalt Oxide – LiNiMnCoO₂), which offers consistent performance and extended life:
Regulated 12V output ensures a stable voltage throughout the discharge cycle
Prevents telescope malfunctions due to power fluctuations or undervoltage
Custom-engineered for Celestron telescopes—by astronomers, for astronomers
Why Stable Voltage Matters
While other lithium packs may claim high capacity, many drop below usable voltage within a few hours—causing telescope motors to strain or electronics to glitch. The PowerTank Lithium LT’s built-in voltage regulator keeps output at or above 11.8V until the battery is fully depleted, ensuring peak telescope performance during your entire observing session.
Advanced NMC Battery Chemistry
PowerTank Lithium LT features advanced NMC chemistry, which offers significant advantages over traditional lithium cobalt or sealed lead-acid designs:
3x longer cycle life than Lithium Cobalt Oxide (LiCoO₂) batteries
Withstands temperatures up to 100°F (60°C) higher than typical lithium chemistries
Overcharge, over-discharge, and thermal runaway protection built in
Safer, more reliable, and more environmentally friendly
Portable and Field-Ready
Whether you're imaging under remote dark skies or setting up in the garden, the PowerTank Lithium LT is a true grab-and-go solution:
Small and lightweight—perfect for travel, camping, or emergency backup
Mounts easily to your tripod leg using included 2” hook-and-loop straps
No extra adapters or cables required for Celestron telescope use
Automatically shuts off when power is low, protecting your gear and the battery
Built-in Protection Features
Voltage Regulation
Reverse Polarity Protection
Overcurrent and Short Circuit Protection
Automatic Shut-Off
Charge/Discharge Management
Compatibility
The PowerTank Lithium LT will power any Celestron telescope mount that uses a 12V DC input, including:
Compatible Mounts
NexStar SE Series
Astro Fi Series
NexStar Evolution
SkyProdigy Series
LCM Series
NexStar SLT Series
Advanced VX
NexStar GT Series (with AUX port)
Whether you're an avid observer, an astrophotographer, or just need a compact backup power source, the PowerTank Lithium LT delivers dependable, efficient power you can trust—night after night.
Shipping Options
Fast & Reliable UK Delivery
We offer flexible delivery options across the UK, with free shipping available on qualifying orders.
FREE Next Working Day Delivery (Mon–Fri) On all orders £300 and over
FREE Express Delivery (1–3 Working Days) On orders £49.99 – £299.99
Express Delivery – £3.99 On orders under £49.99
Standard Delivery (2–4 Working Days) – £2.99 A great value option for smaller orders
Priority Shipping – £8.99 A fully tracked, guaranteed delivery service, including Saturday delivery options
Order Fulfilment
Some items, as clearly stated on the product page, may be fulfilled directly by our partners or manufacturers. In these cases, your order will be shipped to you straight from the brand’s warehouse. This helps us provide a wider range of specialist equipment and may result in slightly different delivery times.
Returns Policy
If something isn’t right, we’ll always try to help.
Unused items in “as new” condition can usually be returned within the statutory cooling-off period
Please contact us before sending anything back so we can advise on the safest way
For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs
Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.
Your statutory rights are not affected.
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Celestron PowerTank Lithium LT
£129.99
Frequently Asked Questions
Our FAQ section covers key information about warranties, shipping, returns, and store opening hours. Find details on manufacturer warranty cover, UK delivery options, how to return an item, and when our team is available to help.
Does it come with a warranty?
All our products are UK stock so come with manufacturers warranty
What happens if I don't like it?
We always want you to be happy with your purchase — so if you’re unsure, please ask us first. We’re always happy to give honest advice before you buy.
If the product arrives and you simply decide it isn’t for you, you can usually return it within the cooling-off period — as long as it’s unused, in perfect condition, and returned with all original packaging and accessories.
Because telescopes and optical equipment are large, delicate and expensive to ship, you’ll need to cover the cost of sending it back, and if we originally subsidised delivery, we may deduct our outbound shipping costs from your refund.
We’re a small specialist business, and unnecessary returns genuinely hurt us — so if you’re unsure at all, please talk to us first. We’d rather help you choose the right item than process a return.
How fast is shipping?
We aim to ship in-stock items as quickly as possible.
Most in-stock orders dispatch within 1–2 working days
Delivery usually takes 1–3 working days after dispatch (UK mainland)
Heavier / oversized items and special orders may take a little longer
You’ll receive tracking details as soon as your order is on its way.
Astronomy equipment often requires specialist packing and trusted couriers — we do this to keep your gear safe, not to slow things down. If you need something urgently, just ask and we’ll do our best.
What's the returns policy?
If something isn’t right, we’ll always try to help.
Unused items in “as new” condition can usually be returned within the statutory cooling-off period
Please contact us before sending anything back so we can advise on the safest way
For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs
Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.