A Celestron Power Tank portable power source is a must-have accessory for any astronomer. This larger Power Tank model contains an extra-large capacity 17 amp-hour battery to provide hours of worry-free use for just about any telescope setup--even if you have a camera and other accessories attached. Compatible with all Celestron computerized telescopes, the Power Tank also works with Meade telescopes when used with an adapter.

The Power Tank includes two onboard flashlights, a small red safety light that preserves night vision while stargazing and a bright white LED spotlight that makes cleanup easy. At the end of your observing session, plug Power Tank into your car's cigarette lighter socket or a regular AC outlet to recharge.This unit features two onboard 12V cigarette lighter ports so you can charge smartphones, tablets, and other devices with a cigarette lighter adapter. The large Power Tank 17 is also a valuable tool for roadside emergencies. It includes a built-in siren and AM/FM emergency radio.

• 17 amp-hour battery
• Two 12V output cigarette lighter ports
• 3V, 6V and 9V outputs for accessories
• Built-in flashlight with red filter cap
• AM/FM radio
• Energy efficient LED spotlight
• Booster terminal on rear side
• Built-in circuit breaker for safety
• Cigarette lighter charging adapter
• AC recharge adapter
• Unit measures 15" x 14" x 6"