Hint M4 - Enclosed battery motor

The Enclosed battery motor is an electric motor which includes an integral 3v power pack. The power pack has a three-way switch allowing the motor to be run in either direction. It takes two AA batteries (not supplied).

Please note that in most K'NEX sets this type of battery motor is now supplied rather than the older, more difficult to use, "Tethered battery motor" - see Hint M2. Both battery motors are very good for models where you don’t need the motor to turn a rod very fast, but you do need quite a lot of power, such as a Bulldozer or Ferris wheel.

A number of the larger K'NEX sets include Enclosed battery motors. They can also be bought as individual items in our K'NEX shops. You will see that there are a number of different colours of Enclosed battery motor, each running at a different speed.

To insert batteries into any colour of Enclosed battery motor, first use a small Phillips-head screwdriver to loosen the screw.

Then insert 2 fresh AA batteries (LR6) into the compartment with the correct polarity (+/-), as shown in the photo.

Please also view important information about batteries

To build the Battery motor into a K'NEX model, simply push a classic K'NEX rod (quite hard) through the hole in the middle. Experiment by turning on the switch on the battery pack to turn the rod in each direction.

The easiest way to attach the motor to your model is to fit a white connector onto the lugs at each side of the motor, as shown in the photo opposite.

Finally, read Hint W6 if you want to make your battery motor turn wheels or connectors.

The photo opposite shows a battery motor connected into a vehicle.

We would particularly recommend the Enclosed battery motor rather than the Tethered battery motor for a K'NEX model such as this, as there are no trailing cables.

KNEX resources > 57 Handy Hints > K'NEX motors (M1-M13) > Hint M4


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