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There are so many problems mentioned in these forums, with regards to battery problems, that, as a retired battery laboratory testing technician, I thought I should give some guidance on car batteries. A 12 Volt battery on a car, is 12 Volts ad infinitum (Unless completely shot!). This will...

As an ex electronics man, I've seen so many reports on this problem on here. Some of the responses have been quite amusing. I think I've cracked the problem, by suffering the same problem myself, on a 2005 Ford Focus. For a 3 volt button cell to provide the power for the electronics, the...

There are so many similar items in these forums, with regards to battery problems, that, as a retired battery laboratory testing technician, I thought I should give some guidance on car batteries. A 12 Volt battery on a car, is 12 Volts ad infinitum (Unless completely shot!). This will be 12...