Telescopic Charging. Fully dive into long-form telescopic viewing with this Celestron PowerTank Lithium LT Power Pack! Featuring a rechargeable lithium nickel manganese cobalt oxide battery ([Li(NiMnCo)O2]) and a built-in 12 volt regulated circuit, this power pack fuels your Celestron telescope for up to 8 continuous hours and recharges in about 4 hours.

Outputs and Mounting. A single 5mm power port uses the included 6.5-foot cable in order to connect the battery pack to your telescope, while a USB-A charging port can support charging for small electronics like a phone, tablet, or GPS device. To secure this battery pack near your telescope, it features an integrated tripod leg mount with a 2-inch strap. It only weighs 22.2 ounces, so no worries about your scope getting off balance!

Battery Features. Protection is the name of the game with the PowerTank, delivering reverse-polarity protection, charging/discharge protection, over-current protection, and short circuit protection. It can withstand a cold night with its broad -40°F to 140°F operating temperature, and even comes equipped with an auto-off feature after an hour of no usage. You can keep a visual on your battery percentage with the four integrated battery level LED lights, which will display a 100%, 75%, 50%, or 25% charge. The battery is recharged using the included AC adapter!