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Home Accessories Celestron Accessories Celestron PowerTank Lithium LT
Our most compact, lightweight, and portable lithium power pack for teescopes. The built-in 12 volt regulating circuit Provides your telescope with up to 8 hours of consistent power at the proper voltage for optimum telescope performance Complete with a rapid charge USB port for fast-charging your electronic devices in the fieldPower your telescope anywhere with the PowerTank Lithium LT, our smallest and lightest lithium-ion power pack. This handy device is a must-have for your telescope and accessories, camping gear, emergency kit, and more.Stable Power Designed for TelescopesThe 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.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 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 telescopes performance and becoming functionally useless within about 2-3 hours.Celestrons 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, regardless of the amount of charge left in the battery. This keeps your telescopes electronics safe and performing their best, so you can focus on astronomy.The NMC chemistry used by the PowerTank Lithium LT offers far more advantages than the commonly used Lithium Cobalt Oxide batteries found on the market today. Besides having a longer shelf life and three times the number of charge cycles than LiCO2 chemistry, our NMC battery offers overcharge and over-discharge protection and can withstand temperatures 100o F (60 C) higher than LiCO2 batteries making the NMC less likely to experience thermal runaway.Compared to a lead-acid battery, the PowerTank Lithium LT is smaller, lighter, more efficient, and better for the environment. It offers better performance, a longer lifespan, and safer operation than other low-cost lithium-ion battery chemistries. It also offers automatic shut-off, reverse polarity protection, charging/discharging protection, overcurrent protection, and short circuit protection.Use in the FieldThe power packs extremely portable form factor means it can go anywhere from a remote dark sky location for astroimaging to a weekend of camping. When its powering your telescope, use the included 2 straps to secure the unit to your tripod leg where it is out of the way. Besides the power cable to charge your telescope, no other cables are needed.If you need to power your telescope and charge electronic devices simultaneously, the PowerTank Lithium LT features two output ports: 1 12V DC port for the telescope and 1 fast-charging 2.1A USB charging port for smartphones and tablets. This USB port can also support any accessories that require 5V USB power.Travel with PowerTankThe PowerTank Lithium LT can travel with you on your next vacation. At 73.3 watt-hours, it meets current FAA regulations (160 Wh) for transportation in your carry-on baggage. Please check in advance with your airline to verify they do not have stricter policies. Do not place PowerTank Lithium LT in your checked baggage.PowerTank Lithium LT Compatibility ListCompatibleAdvanced VX LCM seriesAstro Fi CPC, CPC DXCG-5 (with CG-5 Aux. splitter) NexStar EvolutionCGE NexStar GT (2015 models and newer with Aux. splitter)NexStar SE Series SkyProdigyCGEM II NexStar SLTCGEM, CGEM DX Also suitable for any 12 volt Skywatcher mount or telescope with the standard 2.1mm centre positive power socket
Great product Charges quickly, and then retains charge for ages! A word of warning - make sure you allow enough slack in the power cable between the power pack and the telescope. I didn’t - as the telescope slewed, the cable tightened and snapped. My fault - the supplied cable is long enough! (25/04/2020) James - SurreyOur Reply: We have spare cables if it is 5.5mm x 2.1mm at each end? Send us an email
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