PowerTank Lithium Iron Phosphate Celestron 18771 Black Orange USB Type-A 2 Ports

The Celestron PowerTank Lithium Iron Phosphate (model 18771) is a portable outdoor battery in a distinctive black and orange housing with two USB Type-A output ports. Designed for field use with telescopes and other electronic gear, the PowerTank uses LiFePO4 chemistry for extended service life, stable discharge performance and improved safety compared with many other rechargeable batteries. It provides a convenient USB power source for devices during stargazing sessions, camping trips and mobile fieldwork.

Advantages

LiFePO4 chemistry offers a long shelf life and slow capacity degradation, allowing the PowerTank to retain usable charge over many years and thousands of cycles. The battery can be charged and discharged significantly more times than many alternative chemistries and uses phosphate-based chemistry that avoids hazardous elements such as cobalt or lead. The robust black and orange enclosure is built for outdoor use and the dual USB Type-A outputs enable simultaneous charging of multiple devices while powering telescope accessories.

Suitable for

• Portable power for small telescopes and telescope accessories in the field
• Charging smartphones, tablets, cameras and GPS units during outdoor activities
• Powering USB-powered lights, fans or other low-power field equipment
• Use during camping, astrophotography sessions and remote observing

Key specifications

• Battery chemistry: Lithium Iron Phosphate (LiFePO4)
• Output interfaces: two USB Type-A ports for device charging
• Design: rugged black and orange portable housing intended for outdoor use
• High cycle life and slow capacity degradation compared with standard lithium-ion and sealed lead-acid batteries
• Improved thermal and mechanical safety characteristics versus some other rechargeable chemistries

How to use

Charge the PowerTank fully before first use following the manufacturer’s charging instructions included with the product. Connect compatible USB devices to the Type-A ports using appropriate USB cables; the battery will provide power to USB-powered equipment and simultaneously charge devices as permitted by its output characteristics. Use the unit on a stable, dry surface and avoid exposure to extreme moisture. For extended field sessions, monitor device draw and recharge the PowerTank between outings to maintain optimal battery health.

Usage recommendations

For best long-term performance, store the PowerTank with a partial charge if not used for extended periods, avoid prolonged exposure to extreme heat, and follow the supplied charging and care guidelines. Use quality USB cables and minimize continuous high-current draws to preserve cycle life. When using with telescopes or sensitive electronics, connect and disconnect devices gently to protect ports and cables.