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(2)This is a very practical design that uses electrical controller, with forward-reverse switch and speed-meter, and with LED marker. The device also has electrical current surge protection circuit incorporated, and it does not overcharge the basic power pack.
(3)When the engine (good condition is assumed) travels at full speed, the maximum current intensity consumption is only 0.3A, which is very small. Considering that the maximum current intensity is 0.8A, there is plenty of room left. This means that the basic power pack can control up to two engines in parallel, making thus possible to control three sections at a low cost. (Care should be exercised though as things like lights and other accessories connections may be affected).
