4 Amp Battery Charger: How Long to Charge a Car Battery (12V) for Optimal Performance?
Charging a car battery with a 4-amp charger takes about 10-24 hours for a full charge. To get enough power to start the engine, expect a boost time of 2-4 hours. For better battery life, slow charging is best. This helps prevent damage and extend the battery’s overall lifespan. Charging at a lower rate, like … Read more