#DYING LIGHT ONLY SAVES TO VOLTAGE HOW TO#
We’re not only going to describe how to test these components, but the order in which you should be testing, which will uncover typical problem areas and save you from spending more than you have to. You don’t want to spend that money unless the battery truly is the problem. These days, you’re looking at $140 to $200. There was a time when $75 would buy the best battery on the shelf. But it’s not the only component that needs to be inspected and replaced, and as the years have gone by, it’s become one of the more expensive components in the charging system.
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The battery is a vulnerable component because it can be weakened by age, temperature and even vibration. This diagram is a little basic and out of date, but it roughly explains the components of a typical 12-volt charging system: In the C ar Talk Communities, there’s a question this week about a 2005 Mercedes-Benz C-Class that won’t start, despite the battery being “good.” Before you go buying new batteries, alternators or starters, there’s a sequence of diagnosis you should follow to figure out what’s going on.