On Jun 16, Jason C. Lamb <l...@gweep.net> wrote: > I am fairly new to 1-wire, though I setup a temperature probe about 4 years > ago with excellent success. Today I am looking to 1-wire to monitor the > voltage on my car battery. It seems to drain over night. I can measure the > voltage at night using a multi-meter (13.1 VDC) and by the morning it is 0.2 > VDC. The problem I am not sure if the voltage drop is slow and steady, or > there is a defect in the battery that is causing a sudden drop off.
While this is not a 1-wire solution, I'd rather pull some fuses of suspicious consumers (like radio) and see if the problem persists. If you know which fuse is relevant for the battery draining you can find the problem more easily. Additionally, you don't need a voltage meter but an ampere meter to measure the current. Voltage won't tell you how much power is consumed (it will only tell you when the power is over, that's it). But: This is more dangerous, as you have to put the ampere meter in-line with the consumer, and not parallel like a voltage meter. Some devices suck significant amounts of power, so be prepared for some sparks to fly! I'd probably pull out a fuse, and put in an ampere meter instead. Another suspect (apart from the radio) is any consumer in your doors. The cables there tend to loose their insulation over time and can cause more or less significant current flow. best regards, Markus ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
