How to deal with multiple vehicles, multiple people and multiple garage doors?

[Cobra (Andy - United Kingdom)]

Brian
if you use them in the car then this mod works really well…

Presence Sensor battery upgrade

Soooo, I’m supper annoyed with the presence sensor battery life… so this is what I’m doing. Since a CR2032 battery is 3v and ~240mah I figured I could take two AA batteries in series to get 3v and 1900mah capacity. HUGE difference! about 8x the capacity of a 2032 battery setup. I purchased a few battery cases with leads and project boxes. I’ve already made one for my motorcycle and popped it under the seat. So far, so good. I just want it to last more than 3 months! If the increase in compaticence is even a lowly 50% efficiency gain, which I am guessing it’s far more than that… the thing should last more than a year. If the efficiency is closer to 100% then I can probably expect 2 years out of this thing. I plan on making 2 more for my car and my wife’s car. What I do is set up …

Been using three of these for the last 5 months will no problems (even in low temps)