First, you need to bend a battery bar to "L" shape.
Second, you need to solder the banana plug to "L" bar. Solder it to the longer part of "L", either parallel with "L" or perpendicular to "L".
Finally solder "L" to the negative of battery.
No picture with me to show you.
First, you need to bend a battery bar to "L" shape.
Second, you need to solder the banana plug to "L" bar. Solder it to the longer part of "L", either parallel with "L" or perpendicular to "L".
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