Quote:
Originally Posted by Tom N3EQF
The way a load tester works is to apply a load across the battery terminals for a short time, and measures the voltage the battery maintains. It's a short-term test (holding the switch longer than recommended will result in a very hot load tester!) with an approximate load but it will tell you how healthy the battery is.
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Very true! Lots of videos on YouTube about how to use them. In my oil company days, it was the only way we qualified truly bad batteries when adjusting them for dealers. It doesn't lie but the 10-15 second period must be adhered to. I've used this exact model for years and it works very well. Don't get over technical with it...just use it as designed. It also will test the charging system with engine running. Link is an excellent, no BS instructional video of this exact model. CAUTION: Unit gets VERY HOT when using...make sure it cools down in a safe area.
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