What Are the Causes of Insufficient Charging Current?
2 Answers
Insufficient charging current can be caused by slipping of the generator V-belt, poor contact in the charging circuit, or poor contact between the brushes and slip rings. Below are the reasons for insufficient charging current and charging precautions: Charging Precautions: A battery voltage 10% below the rated voltage may lead to battery discharge; avoid water entering the battery during charging; connect directly to the battery for charging and avoid removing the battery, as this may result in data loss. Solutions for Insufficient Charging Current: Check whether the terminals and wiring connections of components such as the battery, generator, regulator, and ammeter are secure; inspect the regulator's moving contacts for burns or oxidation, ensure the gap between the moving contact arm and the iron core and the spring tension meet technical requirements, and check for loose regulator wiring. Any abnormalities should be repaired promptly.
I once encountered an issue with insufficient charging current. That time, I was driving my old car and felt something was wrong within less than half an hour on the road. The dashboard warning light came on, and after pulling over to check, I found that the alternator belt was severely worn and loose, unable to transmit sufficient power. Additionally, the battery terminals were slightly corroded, increasing resistance and hindering current flow. There might also have been a fault with the internal regulator of the alternator, preventing it from outputting normal values. These minor issues combined to weaken the current, leaving the battery undercharged. Starting the engine several times was difficult, and it almost stalled. I quickly went to a repair shop to replace the belt and clean the terminals. I recommend all car owners regularly inspect these vulnerable components—don’t wait until you’re in danger on the highway to regret it. Safe driving is what truly matters.
