This is what you need to check your batteries because a multi meter will not put a load on it. When your battery is over 2 years old you need to check them twice a year and that is summer and winter because that is when the battery works the hardest. Harbor Freight has these real cheap and it will save you a lot of headaches and downtime. For over 45 years I have worked on aircraft and cars and I enjoy sharing what others shared with me. This is how we learn this is why I am a member here to learn and share.
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