I have a current leak on my car that I can't trace. I've tried taking all the fuses out one by one to identify the circuit causing the problem but whatever I do, the vehicle is draining 50mA 24/7 when it's sat parked up. This wouldn't be a problem if I used it daily (or even every few days) but I don't. Sometimes a week or more goes by between trips out in it and then I often find the battery's been too drained to start it up. I first thought about an isolation switch, but the cold cranking current is 700A or so and finding a well-made and long-lasting switch that can handle that is going to be very expensive. So, would it be feasible to use a triac or diac instead? The 700A is only for a few seconds during start-up and the regular quiescent current during normal operation will be *much* less, obviously. Thoughts?
- posted
7 years ago