OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox
OPEN BOX Pocket Powerbox

Pegasus Astro

OPEN BOX Pocket Powerbox

Regular price
$ 185.00
Sale price
$ 185.00
Unit price
Only 1 Left!

In Stock


Pocket Powerbox (in short PPB)  is suitable for the “grab and go” astrophotographer who does not want too much automation. Device can provide 10Amps of power, a sufficient number of 12V Outputs, Two Dew Heater Channels,  A DSLR power output and an environmental sensor to monitor humidity and temperature.

The Pocket Powerbox provides:

  • 4 x 12V DC Power outlets for your equipment
  • 10 Amps of total power
  • DSLR 8V Output (Can be switched ON/OFF)
  • 2 Channels PWM Dew Heaters – RCA Outputs
  • Humidity and Temperature Sensor (included)
  • Auto Tune Dew Heaters
  • Reverse Polarity Protection
  • USB / PC Controlled
  • Lightweight and extremely compact enclosure

Hint: Take a look at Astrobackyard’s review


4 x 12V DC Power outlets for your equipment

A powerful mosfet transistor provides “electric juice” to your precious equipment. It supply of electricity 4 outputs. Can switch on/off for all ports.

Built in Voltmeter

A precise voltmeter measures and displays in real time your input voltage. If the input is more than 14V, the power is instantly cut off to protect your equipment.

Camera / DSLR Output

A 8Volt Output is suitable to provide power to your DSLR camera. We provide different battery couplers for Sony and Canon DSLR / Mirrorless Cameras

More than 10A of total power

Controller has been designed to support up to 10 Amps of total current



Standalone Operation

Pocket Powerbox can work “out of the box” as a standalone device. Just plug the cables, setup the “autodew” functionality and every time you boot the device, it will retrieve your settings. So, If you don’t like to connect a PC every time, you don’t have to. Simple as that!

Two channel duty cycle PWM outputs

Two Pulse width modulation (PWM) outlets are capable to provide power to your “thirsty” Dew Heaters. No more moisture fuzzing your equipment and destroying your clear nights. These outlets can be remote controlled from your laptop using the supplied software.

Auto Adjustment of PWM (Dew Outputs)

Firmware can auto adjust the PWM Outputs by consulting the environmental sensor Dew Point reading. Just click “Auto” and leave to Pocket Powerbox decide if it is time to switch on and precise tune your dew heaters.

ASCOM 6 Fully supported

Pocket powerbox fully supports ASCOM6. In combination with our main program which acts as a server you can use our latest ASCOM 6.3 supplied drivers to:

  • Pass environmental settings to supported software (e.g Sequence Generator Pro / MaximDL )  (ASCOM ObservingConditions)
  • Switch ON or OFF all 12V outputs. (ASCOM Switches)


INDI Fully supported

Pocket powerbox fully supports INDI, Bundle it with Stellarmate or any other device that can use INDILib.

Led Indications for power and failure states

Led can blink in patterns to warn you regarding important power issues (e.g over or under voltage). Moreover light can be turned off using the software. Our led is very dim but in case you don’t like it on you can switch it off via the software.

Power Cables are included in the package

Four power cable of DC 2.1mm to 2.1mm male (1m) are included in the package.

External Environmental Sensor

External one (1) meter temperature & relative humidity sensor is included in the package. Know exactly the environment conditions of your location.  Temperature, humidity and dew point measurements are displayed in the software.

USB2 Connectivity

Connect the device to your laptop/PC and control Pocket Powerbox from the supplied software or ASCOM drivers

Reverse Polarity Protection

Pocket Powerbox has been design with a reverse voltage polarity protection. It will definitely save your night if you accidentally connect the main power supply in reverse polarity!


A hardware watchdog resets the device if for any reason there is no response from the controller for two seconds. A neat feature in the unlikely event of a controller freeze – when you have a remote observatory and you need to be certain that everything works as expected.

Upgradable Firmware

Device is firmware upgradable to support future features and bug fixes.

Compact Size and Lightweight

A hard plastic ABS lightweight and compact sized box enclose the controller board. Size is 109mm x 74mm x 25mm). Weight is 250 grams.


In the Box

Pocket Powerbox Controller ✔
External Temperature / Humidity Sensor ✔
4 x Power DC 2.1 to 2.1 male cable (1m) ✔
USB Cable Type B (3m)


Technical Specifications

Supply Voltage 12V – 13.8V DC (Reverse Polarity Protected)
Power Input Connector DC 2.1mm
Connectivity USB2 – Type B USB Connector
4 x 12 Outputs Maximum Current 8 Amps in total. 2.1mm Center Positive
Software: ON/OFF all ports
2 Channel x 12 PWM Outputs Maximum Current 5A Each, Black Colored RCA Connector, Pulse Width Modulated (Suitable for Dew Heaters or Flatbox)


Software: Duty Cycle % / OFF

1x Sensor Input Mini Stereo Socket, Connectivity with Environmental Sensor


0-100% humidity readings with 2-5% accuracy
-40 to 80°C temperature readings ±0.5°C accuracy

Camera / DSLR Output  Max 1.5 Amps, 8Volt. 2.1mm Center Positive
Voltmeter Measures 5 – 15V
Dimensions 109mm x 74mm x 25mm , Weight 250 grams

Documentation and Software

Available Accessories

  • Power Supply Unit (12V / 10A) – 2.5mm Plug

  • Battery Couplers

    • Pegasus Astro currently support the following Couplers:
      • Sony Mirrorless Coupler Compatible With
        • A7 A7R A7S A7II A7RII A7SII
      • FUJI Mirrorless Coupler NP-W126 Compatible With
        • HS30EXR HS33EXR HS50EXR X-A1 X-E1 X-E2 X-M1 X-Pro1 X-T1 X-T2
      • DR-E17 Compatible with:
        • For Canon EOS M3 Mirrorless
      • DR-E18 Compatible with:
        • For Canon EOS Rebel T6s / EOS Rebel T6i | 760D/750D
      • DR–E5 Compatible with:
        • Canon 450D Rebel XSi
        • Canon Digital Rebel XS (digital)
        • Canon Digital Rebel XSi
        • Canon EOS 1000D
        • Canon EOS 450D
        • Canon EOS 500D
        • Canon EOS Kiss F
        • Canon EOS Kiss X2
        • Canon EOS Kiss X3
        • Canon EOS Rebel T1i
      • DR-E6 (Canon leadership cameras)
        • Compatible with Canon 5D Mk II, 5D Mk III, 6D, 60D, 60Da, 7D, 70D
      • DR-E8 (Canon medium range cameras)
        • Compatible with Canon EOS 700D, Canon EOS 650D, Canon EOS 600D, Canon EOS 550D.
      • DR-E10 (Entry camera models)
        • Compatible with Canon EOS 1100D and 1200D.
      • DR-400 (Older camera models)
        • Compatible with Canon 5D, 50D, 40D, 30D, 20D, 10D, D60, D30
  • Cables
    • Power Cable for Skywatcher EQ6R / AZ-EQ6 Mount

    • Power Cable for Skywatcher EQ8 Mount


    Q: What kind of power supply do I need?

    A:  We suggest to buy a good linear 12V / 10A  branded power supply. Cheap units cause voltage drops on high load and ripple effect. This will cause issues and artefacts to your precious CCD Camera.

    Q: What type of cable do I need to use for input?

    A: If you are going to make a custom input cable notice that you need at least a AWG 18 cable. Make also sure that you do not exceed 2m to to reduce voltage drops.

    Q: My observatory is in a very cold place. Is there any issue with the electronics of the device?

    A: All electronic components were selected to support temperature ranges from -40 to +80 °C.

    Q: I have a new feature request. Is it possible to implement it in the software / firmware.

    A: Sure, we are here to listen to our customers. Please contact us and tell us your idea!

    Q: What if I accidentally reverse polarity?

    A: Pocket Powerbox has an input reverse polarity protection. Device will not power on and of course will not allow any voltage to leak to outputs.

    Q: At the middle of the night humidity rises up. What can I do for my optics?

    A: Enable auto-dew functionality. Device firmware will adjust the power of both Dew Heater outputs consulting the humidity / dew point levels that environmental sensor reports.

    Q: Can I upgrade the firmware?

    A: Of course, device was designed to support firmware upgrade for future features or bug fixes.

    Personal Upgrade Path

    Buy risk-free: When it’s time to trade up you’ll get the most value for your used gear.