Celestron 18768 PowerTank Lithium Ferrite Pro, Black

PORTABLE POWER MADE FOR ASTRONOMERS: The perfect solution for most computerised telescopes, features a 12V connection, 17 hours of battery life, an on-board red/white LED flashlight, USB ports, and more; Mounts directly to the tripod leg SMALLER, LIGHTER, SAFER: Unique Lithium-Iron Phosphate (LiFePO4) chemistry makes this battery smaller and easier to maintain compared to sealed lead acid batteries, and safer than lithium cobalt batteries; Does not use toxic heavy metals 10 YEARS OF DEPENDABLE PERFORMANCE: Unlike other batteries with limited lifespans, PowerTank Lithium Pro will be your companion for years of astronomy adventures; it is rated to withstand up to 2000 charge cycles WORKS WITH A VARIETY OF DEVICES: 12V connection works with all current Celestron computerised telescopes; PLUS, a 12V car battery adapter port and two USB ports—one quick charge and one regular AN EMERGENCY KIT ESSENTIAL: Keep PowerTank Lithium Pro charged and ready for unexpected power outages; The USB ports will keep your devices charged while the flashlight will illuminate your surroundings