I have three 3 volt (2x1.5 battery) led devices that I would like to remove the batteries and add a 9 volt power cord to. The lights have a motion sensor on it, so I don't expect that I can just drop a line to each without some sort of voltage regulator. I've looked online but don't come away with a comfortable feeling.

Thank you!

by ekane71
January 16, 2019

Why not wire them in parallel and use a single pair of fatter batteries like C or D cells? Then the motion sensors should not interfere with each other.

by mikerogerswsm
January 16, 2019

Thank you for that. I would like to lose the batteries all together, if possible.

by ekane71
January 17, 2019

In that case connect in parallel and use an LM317 to produce 3V:


by mikerogerswsm
January 17, 2019

I'll give that a shot. Thank you so much for your response.

by ekane71
January 17, 2019

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