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1. Operation
Power 12-Volt Devices (12V/10A output)
The Dynamo Pro 17 will operate up to two devices that are
powered by a 12V/10A car cigarette lighter-type plug. If your
12V device does not have a cigarette lighter-type plug, then
you will need to purchase an adapter (contact Orion or your
local electronics store). The tip of the plug will receive the pos-
itive charge (tip positive) from the Dynamo Pro 17, so make
sure that the device to be powered is also tip positive. If the
device is tip negative, then an adapter is needed. (Some ciga-
rette lighter-type plug adapters allow you to switch between tip
positive and tip negative). If both of the 12V sockets are being
used simultaneously, the total amperage of the 12V devices
together must not exceed 10 Amps.
Switch the power switch (Figure 1) to the “ON” position and
the green “READY TO USE” power indicator LED should
shine. Slide open the door to one of the 12V/10A output jacks
and insert the device’s 12V power plug.
Powering USB Devices
To use these jacks, simply turn the Dynamo Pro 17 power
switch to the “ON” position and insert the device’s plug into the
appropriate output jack.
Operating the 12V Flashlight
The 12V flashlight located on the top of the Dynamo Pro 17
is a medium-power light that can be used to provide light to
a small area. It has a red lens to preserve night vision under
dark skies. The flashlight can also be removed from the body
of the Dynamo Pro 17. Simply line up the tab on the body of
the flashlight with the recess in the body of the Dynamo, grab
hold of the front of the flashlight, and pull it out. You will notice
that the flashlight is tethered by a 10 foot long cable. For your
convenience, there is a cable-winder built into the rear of the
flashlight. To expose the cable-winder, fold back the rear cover
of the flashlight. You will also notice that there is a magnet on
the rear cover; this can be used to attach the flashlight to a
metal surface for “hands-free” applications.
To operate the flashlight, the Dynamo Pro 17 power switch
must be in the “ON” position. Press the flashlight button (Figure
1) once to produce a constant light. Pressing the button a sec-
ond time will cause the flashlight to flash on and off steadily.
Pressing the button a third time will turn the flashlight off.
Operating the Spotlight
The spotlight is comprised of 30 individual super bright white
LEDs. Although it has many useful applications, the use of
such a powerful light at astronomical gatherings is not advised.
To operate the spotlight, the Dynamo Pro 17 power switch
must be in the “ON” position. Flip the spotlight switch (Figure
1) to the “ON” position. The spotlight can be rotated about its
hinge (Figure 1) for easy positioning of its beam. Simply take
hold of the spotlight and move it to the position you want.
Operating the Radio
To use the radio, the power switch must be in the “ON” posi-
tion. The radio switch (Figure 1) allows you to select between
FM radio, AM radio, or the internal siren. The internal siren is
for emergency situations.
To turn the radio on, rotate the volume dial clockwise until it
clicks on. The tuning dial allows you to adjust the frequency to
the desired radio station signal. To turn the radio off, rotate the
volume dial counterclockwise until it clicks into the off position.
2. Recharging the Dynamo
Pro 17
If the yellow “NEEDS CHARGING” LED indicator light is shin-
ing, then the battery power is low and requires recharging.
The battery can be recharged from an AC outlet or from a DC
source, such as a car cigarette lighter.
Recharging the Dynamo Pro 17 with AC Current
Recharging the Dynamo Pro 17 with an AC current out-
let requires the included AC adapter (15V DC). Do not use
substitute AC adapters. The AC adapter is stored in the com-
partment above the car battery clips. The Dynamo Pro 17 AC
Charging Adaptor is provided with interchangeable 110v-240v
AC power outlet plugs for UL (US style plug, 110v/60Hz), BS
(230v/50Hz) and Europe (230v/50Hz) standard voltage AC
outlets. Before using the AC Adaptor, select the appropriate
power outlet prongs depending on your location and clip them
into the body of the AC Adaptor.
Press the power switch into the “CHA”, or charge position.
Then plug the small end of the AC adapter into the charge
input jack (Figure 1) located at the rear of the Dynamo Pro 17,
and plug the other end of the adapter into a 110V AC wall out-
let. The red “CHARGING” LED light should come on indicating
that the battery is charging.
Charging should take around 14-20 hours, depending upon
how drained the battery is. The green “FULLY CHARGED”
LED light should shine when the battery is fully charged.
Unplug the adapter from the Dynamo Pro 17, and the “READY
TO USE” LED should shine again once the power switch is in
the “ON” position.
Recharging the Dynamo Pro 17 with DC Current
Recharging the Dynamo Pro 17 with DC current should be
done with the cigarette lighter outlet in an automobile. The
car’s engine must be operating during charging. The DC
