Pro Boat PRB4250 User Manual
Page 5

5
EN
Installing the Battery Pack(s)
Impulse 26
1. Lift the back of the hatch and pull the hatch backward to remove.
2. Remove the radio box cover.
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2
3. Put hook tape inside the boat hull as shown.
4. Put loop tape on the boat battery. Do not cover warning labels with
the loop tape.
5. Install the boat battery in the hull as shown.
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4
Impulse 31
1. Turn the hatch lock counterclockwise to unlock the latch.
2. Lift the back of the hatch and pull the hatch backward to remove.
3. Remove the radio box cover.
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2
3
4. Put hook tape inside the boat hull as shown.
5. Put loop tape on the boat battery. Do not cover warning labels with
the loop tape.
6. Install the boat battery in the hull as shown.
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Battery and Charging
Precautions and guidelines
• Fully charge the battery pack(s) before installing the pack(s)
in the boat.
• Do not charge any battery unattended, and monitor for heat.
• If the battery pack is more than warm to the touch, immediately
discontinue charging.
• Follow all safety precautions and instructions supplied by the
battery charger and battery manufacturer.
Ni-MH Batteries (Impulse 26/Impulse 31): Only use high
performance batteries. We recommend using Pro Boat Ni-MH battery
packs (PRB3316). Low quality or unmatched battery packs will not deliver
the amount of power needed to operate the boat. If the Ni-MH batteries
are fully charged and the ESC stops operating early, the most likely cause
is batteries with high internal resistance. It may be necessary to replace
batteries to ensure proper operation.
li-Po Batteries:
CAuTION: You may use (2) 7.2V Ni-MH batteries to operate the
Impulse 31. Before using Ni-MH batteries in the Impulse 31,
you must use the Pro Boat Brushless ESC Programming Module
(not included) to program the proper low voltage cutoff.
Trim Adjustment
Turn the throttle trim knob to stop the propeller from turning while
the throttle trigger is in the neutral position.
Turn the rudder trim knob to center the rudder prior to operating
the boat. Adjust the rudder trim to make the boat run straight
during operation.
Dual Rate
Steering Trim
Throttle Trim