Yes, a car battery can have good voltage but no amps. This happens due to battery degradation. When tested without a load, the voltage may seem fine. But when a load is applied, the voltage drops. This indicates the battery cannot provide enough current, often due to a lazy cell or failing cell.
To troubleshoot this issue, start by testing the battery voltage with a multimeter. A voltage reading above 12.4 volts suggests the battery is charged. Next, check for a load test. A load tester applies a sudden load to the battery. If the voltage drops significantly below 9.6 volts during this test, the battery may be weak and unable to deliver amps.
Inspect the battery terminals next. Corrosion or loose connections can impede the flow of current. Clean the terminals and tighten connections as necessary. If the battery still fails to provide amps, consider examining the internal components. A short circuit or cell failure can prevent it from functioning properly, despite having good voltage.
Understanding these troubleshooting steps is crucial. If you find the battery problematic, replacing it may be necessary. Next, we will explore how to choose the right replacement battery for your vehicle.
Related Post: