Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Does anyone know where I can find information on building a device that would prevent my battery from running down if I accidentally leave my interior lights on? Ive seen small devices for sale for $70 or more but that seems pretty expensive for such a simple gadgit.
I just replaced my dome light "festoon bulb" with a multi-LED unit (you can get pre-made drop-ins if you don't want to solder one up). Now, my battery will still be fine even if the light is left on overnight.
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