Can anyone give me any advice on how to check car battery is holding its charge? Can I do this with just a basic multimeter? The cables on the multimeter I've got are quite thin... would i be okay hooking these up to a car battery or would they fry away?
They have a special type of meter which applies a large load current and checks how much the voltage falls on load over a set period. They will usually carry out the test for free, on the off chance you may buy a new battery if it is demonstrated to be faulty. You cannot do that with an ordinary cheap multimeter, all you can do is check the static volts. It should read something better than 12.5v after standing for a while, but it is not absolute proof that it is OK, just an indication that it is retaining some sort of charge. When cranking, but not actually started it should be over 10.5v.
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.