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Celestron Powertank Battery Rechargeable Portable 12v Power Supply For Computerized Telescopes 84 Wh Power Built In 2 Usb Ports - Telescope & Binoculars - AliExpress
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Amazon.com: Celestron - PowerTank Lithium Telescope Battery – Rechargeable Portable 12V Power Supply for Computerized Telescopes - 10 hour capacity/86 Wh - Red/White LED Flashlight - 2 USB Ports : Electronics
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