How to Charge a Car Battery at Home?
1 Answers
We can start the car and let the onboard alternator charge the battery. Generally, the car engine needs to maintain a speed above 2000 RPM, and the vehicle should be driven for at least 4 hours to fully charge the battery. The car's alternator needs to operate at a speed above 2000 RPM to reach full load capacity, at which point the power generation reaches the nominal value indicated on the nameplate. If the engine speed does not reach 2000 RPM, the charging time will be even longer. If possible, we can purchase a portable battery charger, plug it into a household power outlet, and connect it to the positive and negative terminals of the battery to charge it. If the car battery is too low, the car won't start, and you'll need a jump start or an external charger to get it running.