Celestron 18763 PowerTank Lithium LT Telescope Battery Power Pack Rechargeable Portable 12V Supply for Computerised Telescopes with 8 Hour Capacity / 73.3 Wh and 1 USB Port, Black

PORTABLE POWER: The perfect solution for most computerised telescopes, PowerTank Lithium LT features a regulated 12V connection, 8 hours of battery life, a USB port and more. Mounts directly to the tripod leg. SMALLER, LIGHTER, SAFER: Unique Lithium Nickel Manganese Cobalt Oxide chemistry delivers a steady charge over long periods and requires less maintenance than a traditional sealed lead-acid battery. DEPENDABLE PERFORMANCE: Unlike other batteries with limited lifespans, PowerTank Lithium LT will be your companion for many years of astronomy adventures. Designed for astronomers, by astronomers. WORKS WITH A VARIETY OF DEVICES: 12V connection works with all current Celestron computerised telescopes. Also includes one rapid charge USB port to charge your smartphone, tablet or other USB-powered devices in the field. AN EMERGENCY KIT, CAMPING TRIP or EXCUSRSION ESSENTIAL: Keep PowerTank Lithium LT charged and ready for unexpected power outages.