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Power & Cables

Power & Cables

Keep the mount running until the sky closes

Field power banks with red LEDs, mains supplies for PMC-Eight mounts, and Lunt pressure tuner controllers.

4Products
8300mAh pack
$109.99From
  • Front panel of the Lunt PC-USB pressure tuner controller with its airline port
    Lunt PC-USB pressure tuner controller, the unit the extension hose connects to the telescope
    Lunt Solar Systems

    Lunt PC-USB Extension Hose

    from $17.99

    Extra Airline Length For Remote Tuner Placement The PC-USB extension hose is the airline that connects a Lunt PC-USB pressure t...

    View full details
    from $17.99
Power & Cables

The Session Ends When the Power Does

A GoTo mount, a dew heater, a camera and a phone running a star chart will flatten a small battery well before the sky gets good. Running out of power at one in the morning is one of the more avoidable ways to lose a clear night.

This is the field power side of a setup: a rechargeable pack with a red LED that will not wreck your dark adaptation, a mains supply for PMC-Eight mounts when you are observing from home, and the USB pressure tuner controller for Lunt solar telescopes.

Working out what your mount actually draws? Tell us the model and we will size it with you.

Explore Scientific USB power bank with red LED flashlight
1

Red light, kept

Every light on this page is night-vision safe. One glance at a white screen costs twenty minutes of dark adaptation.

2

Right voltage, right plug

Mount power is fussy about voltage and tip size. We match it to your mount rather than guessing.

3

Enough for a full night

The 8300 mAh pack carries a GoTo mount, a camera and a phone through a long session.

4

Free shipping on all of it

Every item on this page ships free within the United States.

Power questions, answered

The practical ones.

How long will the power bank run my mount?

The 8300 mAh pack holds 99.6 Wh. A small GoTo mount typically draws well under 10 W tracking, so a full night is realistic with capacity to spare for a camera and a phone. Slewing repeatedly and running a dew heater will shorten that considerably.

Why does the flashlight have to be red?

Dark adaptation takes roughly twenty minutes to build and about a second of white light to destroy. Deep red light lets you read a chart or find a knob without resetting your eyes.

Can I use any 12V supply on a PMC-Eight mount?

Voltage, current and the plug tip all have to match, and getting it wrong can damage the electronics. If you are not certain, send us your mount model before you plug anything into it.

Is the PC-USB extension hose a USB cable?

No, and the name is misleading. It is the pneumatic air line that extends the reach of the Lunt pressure tuner, so you can tune the etalon from further away from the telescope.

Where to go next

Power keeps the session going. These pages cover the rest of it.