Rick's Free Auto Repair Advice

Posts Tagged: battery charger

How to buy an automotive battery charger

Tips for buying an automotive battery charger Don’t buy an old used car battery charger Old battery chargers were designed to charge a battery at high voltage to shorten charging times. That was fine back in the days when cars didn’t have computers. But use one of those old chargers on your modern computer-equipped car or truck and you risk frying the expensive electronic components. Buy a smart automotive battery charger A smart charger will perform a diagnostic on the battery to determine the level of charge and the internal … Read More

Test your alternator

How to test an alternator If your car wont start because the battery is dead, you’ll need to test the battery and test your alternator. I’ll show you how to perform the tests, but first pay attention to this WARNING! NEVER test an alternator by disconnecting the battery cables while the is engine is running. That was a valid test back in the days when cars didn’t have any solid state electronics, but it’s not valid anymore and can cause substantial damage to expensive computers and modules. How to find … Read More


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