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Step 9Battery holder
Create the battery terminal connectors by coiling and soldering stiff wire as shown below.
Pass the ground rail jumper with one free end through the PCB and trim excess wire. Solder one of the newly created battery connectors to the end.
Pass free end of the jumper connected to the middle terminal on the switch through the PCB. Trim and solder to other battery connector.
Secure battery to coiled leads with a zip tie pulled tight over the battery. With the fat part of a cheap soldering iron, melt the zip tie just a bit to make corners to hold the battery in place.
Tape battery wires to zip tie.
Pass the ground rail jumper with one free end through the PCB and trim excess wire. Solder one of the newly created battery connectors to the end.
Pass free end of the jumper connected to the middle terminal on the switch through the PCB. Trim and solder to other battery connector.
Secure battery to coiled leads with a zip tie pulled tight over the battery. With the fat part of a cheap soldering iron, melt the zip tie just a bit to make corners to hold the battery in place.
Tape battery wires to zip tie.
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