How to Run an 18V Ryobi Tool Using a Car Battery

Step-by-Step Guide

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   Step 1: Cut 7 or 8 inches (17.8 or 20.3 cm) off a length of 1.125" (1 1/8") diameter dowel rod.

   The extra length gives you something to grab when inserting and removing this replacement for the battery pack. ,, See where the screws are in the photo; that's where the holes were drilled. , Drill pilot holes first if necessary., See the notches in the photo for clarification. , Adjust until it fits.
   
   Don't force it and bend the metal connectors at the base of the battery compartment; this carving is to ensure it goes over them. , Make sure the positive (red) wire is on the left with it held upright as seen here; it will be on the right when you invert it and push it into the battery slot. ,,,
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   Step 2: Cut about 4 inches (10.2 cm) from a piece of 3/4"x1/8" rectangular aluminum stock.

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   Step 3: Drill two holes in the aluminum stock

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   Step 4: at about 1/2" and 1" from one end

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   Step 5: at about the center.

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   Step 6: Holding the other end (that which you didn't drill) of the aluminum piece flush with the end of the dowel

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   Step 7: screw the aluminum to the dowel with small wood screws.

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   Step 8: Cut half-moon shaped notches into the end of the dowel at about 2 and 10 o-clock

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   Step 9: with the center of the aluminum as 6 o'clock.

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    Step 10: Push the dowel into the tool

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    Step 11: aligning the aluminum with the flat side of the battery compartment

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    Step 12: making sure the notches are big enough to enable the dowel to seat completely.

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    Step 13: Connect the two wires

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    Step 14: using wood screws

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    Step 15: to the end of the dowel

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    Step 16: such that the stripped and twisted wires stay in the notches.

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    Step 17: Clip the battery leads

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    Step 18: red to positive (+) and black to negative (-)

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    Step 19: to your car battery or 12 V solar setup.

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    Step 20: Plug the dowel into the tool

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    Step 21: seating it completely

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    Step 22: and making sure the wires stayed put as you pushed it in.

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    Step 23: Safely turn on the tool and make sure it works.

Detailed Guide

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