As an avid amateur astronomer, I’ve spent countless nights under the stars, often battling the frustrating reality of dwindling battery power. There’s nothing worse than meticulously setting up your computerized telescope, only for it to lose alignment or simply shut down due to an insufficient power source just as the celestial objects are at their clearest. This challenge of maintaining consistent power in remote locations was a constant headache, threatening to cut short many promising observation sessions and complicate the entire stargazing experience. Finding a reliable, portable power solution wasn’t just a convenience; it was a necessity to fully enjoy the hobby without constant interruption.
- THE ORIGINAL TELESCOPE POWER SUPPLY: Enjoy extended astronomy sessions anywhere with this portable 7-amp hour sealed lead acid power supply with 84 Wh capacity.
- WORKS WITH A VARIETY OF DEVICES: Includes two 12V output cigarette lighter ports that are compatible with all Celestron computerized telescopes and other popular astronomy gear. Also features 2 USB...
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Navigating the Night Sky: What to Consider Before Investing in a Telescope Power Supply
For anyone venturing into the world of astronomy, particularly with computerized or motorized telescopes, a dedicated power supply is paramount. These devices allow for extended use away from standard AC outlets, solving the problem of short observation windows caused by disposable batteries. An ideal customer for a portable power station is anyone who owns a computerized GoTo telescope, uses astrophotography equipment, or simply enjoys camping and requires reliable off-grid power for various electronics. Those who primarily observe from a location with easy access to wall power or who only use very basic, non-motorized telescopes might find a dedicated power supply excessive. Instead, they might be better served by a simple battery pack for small devices or focusing on manual observation.
Before committing to a telescope battery, consider its capacity (amp-hours or watt-hours), ensuring it can power your equipment for your desired session length. Look for multiple output options (12V DC, USB) for versatility, and check for safety features like circuit breakers. Portability, weight, and the inclusion of necessary charging cables are also crucial factors. Finally, consider additional features like built-in lights or emergency jump-start capabilities, which can add significant value beyond just powering your scope.
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Introducing the Celestron PowerTank 12: Your Reliable Stargazing Companion
The Celestron – PowerTank 12 Telescope Battery is a rechargeable, portable 12V power supply designed specifically with amateur astronomers in mind, though its utility extends far beyond. This robust unit promises to deliver consistent power to your computerized telescopes and other gear, allowing for extended sessions under the stars without the worry of power failure. When you purchase the PowerTank 12, it comes equipped with the necessary cigarette lighter and 110V/220V switchable universal AC adapter cables, ensuring you’re ready to power up right out of the box. Compared to relying on numerous disposable AA batteries or even smaller rechargeable packs, the Celestron PowerTank offers a far more stable, long-lasting, and cost-effective solution for serious astronomers. This specific model is ideal for anyone looking for a reliable, all-in-one power station for their astronomical adventures or general outdoor use. It might not be for those seeking the absolute lightest or smallest power bank, as its sealed lead acid battery gives it some heft.
Here’s a quick look at its pros and cons:
Pros:
* Provides extended power for computerized telescopes and other devices.
* Versatile with multiple 12V DC and USB output ports.
* Includes both red and white LED flashlights, crucial for night vision.
* Doubles as an emergency power source with car booster terminals.
* Comes with all necessary charging cables.
Cons:
* Can be heavy at 8.5 pounds due to the sealed lead acid battery.
* Some users have reported issues with the battery holding a charge long-term if not regularly maintained.
* The red LED flashlight cap can be fragile.
* Lacks a built-in battery charge status gauge.
Deep Dive: Exploring the Capabilities of the PowerTank 12
Reliable and Enduring Power Capacity (7-amp hour, 84 Wh)
One of the most compelling features of the Celestron PowerTank 12 is its substantial 7-amp hour (84 Wh) sealed lead acid battery. From my experience, this capacity is a game-changer for extended astronomy sessions. When I first got my computerized Celestron telescope, I was dismayed by how quickly AA batteries would drain, often forcing me to cut short a viewing session or perform multiple realignments as power fluctuated. This portable power supply eradicates that problem entirely. I’ve personally used it to power my telescope for over six hours, including the integrated lights, without needing a recharge. This allows for uninterrupted tracking of celestial objects, facilitating long exposure astrophotography or simply deep sky observation without the anxiety of losing power. The benefit is profound: truly immersive and lengthy stargazing sessions, eliminating the costly and environmentally unfriendly reliance on disposable batteries, and saving you the frustration of constant battery swaps. However, it’s worth noting that, like all lead-acid batteries, it requires proper maintenance, meaning regular recharging even when not in use, to prevent it from losing its ability to hold a charge over time. This is a common point of frustration for some users who expect it to perform like a lithium-ion battery.
Versatile 12V DC Output Ports
The inclusion of two 12V output cigarette lighter ports significantly enhances the versatility of the PowerTank 12. These ports are not just compatible with all Celestron computerized telescopes but also with a wide array of other popular astronomy gear that relies on a 12V DC input. This means I can power my telescope and, for instance, a dew heater strip simultaneously, preventing moisture from fogging up my optics – a common issue on humid nights. The ability to run multiple accessories from a single, robust source simplifies my setup considerably. It eliminates the need for bulky extension cords or multiple individual battery packs, creating a cleaner, more efficient observation station. For anyone with a complex astronomy setup, these dual 12V outputs are indispensable, providing consistent and ample power where it’s needed most.
Convenient USB Charging Ports
In today’s connected world, even astronomers need to keep their devices charged. The Celestron PowerTank 12 addresses this with two built-in USB ports. These are incredibly useful for charging phones, tablets, or other USB-powered devices that might be running sky charting apps or providing digital star maps. There have been times when I’m out in the field for several hours, using my phone to navigate the night sky or control an eyepiece camera, and the phone battery starts to dip. Being able to plug it into the PowerTank for a quick top-up without disrupting my telescope’s power is a massive convenience. While some users have reported that the USB ports might not maintain a charge for power-hungry devices like phones being used as eyepiece cameras, requiring a separate adapter in a 12V port, for general charging of devices not under heavy load, they work perfectly fine, keeping essential communication and navigation tools alive throughout the night.
Integrated Red and White LED Flashlights
The onboard flashlights are a thoughtful and highly practical addition. The red LED flashlight is an absolute necessity for astronomy. Red light preserves your night vision, which is crucial when observing faint objects or simply navigating around your equipment in the dark. Switching on a white light would immediately ruin your dark adaptation, requiring minutes for your eyes to readjust. The red light filter cap ensures that I can consult star charts, make adjustments to my telescope, or find a dropped accessory without compromising my (or my fellow observers’) night vision. Additionally, the bright white LED is invaluable for packing up at the end of the night, illuminating the entire site for easy cleanup and ensuring nothing is left behind. This dual-light system is a testament to the PowerTank 12‘s design for astronomers. However, a minor drawback is that the red light cap has been reported by some users to be somewhat fragile and can detach easily with minimal stress, which is something to be mindful of.
Emergency Preparedness and Roadside Utility
Beyond its primary function as a telescope power supply, the PowerTank 12 also serves as a valuable emergency kit essential. The fact that it includes booster terminals on the rear side for starting weak car batteries is an incredible bonus. While I haven’t had to jump-start my car with it yet (thankfully!), knowing I have that capability provides significant peace of mind, especially when venturing to remote dark sky sites. Furthermore, its ability to power lights and charge devices makes it invaluable during unexpected power outages at home. It’s more than just a hobby accessory; it’s a versatile tool that can provide critical assistance in various unexpected situations, making it a truly multi-functional device to have on hand.
All-Inclusive Cable Package and Robust Safety Features
The convenience of having all necessary cables included right out of the box cannot be overstated. The PowerTank 12 comes with both a cigarette lighter adapter and a 110V/220V switchable universal AC adapter. This means you can charge it at home or even from your car’s 12V outlet, offering flexibility in keeping the unit topped up. Not having to scour for compatible cords after purchase saves time and money. Moreover, Celestron has built in a circuit breaker for safety, protecting both the PowerTank and your connected devices from surges or overloads. This thoughtful inclusion of safety measures provides confidence in using the unit with sensitive astronomical equipment. The presence of a 2-Year US Warranty and unlimited support from Celestron’s US-based experts further underscores the brand’s commitment to quality and customer satisfaction, offering peace of mind with your investment.
Portability and Construction
Weighing in at 8.5 pounds with dimensions of 13″D x 7″W x 11″H, the PowerTank 12 strikes a good balance between capacity and portability. While it’s certainly not feather-light, its integrated handle makes it easy to carry to your observing spot. The robust casing feels durable, designed to withstand the rigors of outdoor use. The one minor assembly drawback I’ve encountered is related to the small door that stores the 12V power cord; on one unit I owned, it arrived detached and wouldn’t snap back into place, which was a minor inconvenience but didn’t affect functionality. For such a critical piece of equipment, its solid construction instills confidence that it will last through many clear nights.
Voices from the Field: What Users Are Saying About the PowerTank 12
Having perused numerous online discussions and user feedback, it’s clear that the Celestron PowerTank 12 generally receives high praise for its performance and versatility. Many users echo my sentiments about its ability to provide extended power for computerized telescopes, often for four to eight hours or more. They appreciate its multiple charging options, including the useful USB ports for personal devices. The built-in lights, especially the red LED, are frequently highlighted as essential for night observing. Some have pointed out that while the unit is fantastic, the smaller plastic components, like the red filter cap or the compartment door for cables, could be more robust. There are also occasional mentions of batteries not holding a charge after prolonged disuse, emphasizing the importance of regular maintenance.
Final Thoughts: Powering Your Astronomical Adventures
The problem of inconsistent or insufficient power for computerized telescopes and other outdoor electronics is a significant barrier to truly enjoying stargazing or off-grid activities. Without a reliable power source, your observing sessions are cut short, equipment might fail prematurely, and the overall experience becomes frustrating. The Celestron PowerTank 12 is an excellent solution to this challenge.
First, its substantial 7-amp hour capacity ensures extended operation for your telescope, far outlasting disposable batteries and providing hours of uninterrupted viewing. Second, its multiple output options—two 12V cigarette lighter ports and two USB ports—make it incredibly versatile, powering not just your scope but also other essential devices. Finally, the thoughtful inclusion of red and white LED flashlights and emergency car booster terminals elevates it beyond a simple battery pack to an indispensable piece of kit for any amateur astronomer or outdoor enthusiast. For a reliable, feature-rich, and ultimately empowering experience under the stars, this unit is a fantastic choice. Don’t let power limitations dim your astronomical ambitions; click here to check out the Celestron PowerTank 12 Telescope Battery and power up your next adventure!
Last update on 2025-09-29 / Affiliate links / Images from Amazon Product Advertising API