Take your telescope anywhere with this portable, rechargeable power supply. Whether you have a computerized telescope or operate your telescope using motors, Celestron specially designed this product with the amateur astronomer in mind; it’s packed with useful features. First, you’ll find two 12V cigarette lighter ports for your astronomy gear. This battery is compatible with all Celestron computerized telescopes for maximum versatility. You’ll also find two USB ports on board so you can keep your smartphone, tablet, GPS, or speaker charged and ready all night long. When your eyes are dark adapted, turn on the integrated red LED flashlight to stay organized without sacrificing your night vision. When the observing or astroimaging session is over, turn on the bright white LED flashlight to illuminate your site and ensure no lens caps or eyepieces are left behind in the dark. When you’re not observing, keep this battery charged and at the ready for unexpected emergencies. You can use the flashlight and USB ports to stay illuminated and connected during a power failure. PowerTank can even help you top off a weak car battery with the included positive and negative terminals. This sealed lead acid battery offers safer and more stable chemistry compared to low-quality lithium ion batteries, and features a built-in circuit breaker for even more safety.