What does 4.8A car charger mean?

[Pete]

It means outputting 48V voltage with a maximum current of 4.8 amps. Here are relevant details: 1. 4.8A current: This current is too high for devices like mobile phones, tablets, or navigation systems, which may consequently affect the cigarette lighter or even the car battery. 2. During usage: Special attention should be paid when inserting the car charger into the cigarette lighter socket. Ensure the spring contacts on both sides of the charger do not get caught in the notch on the sidewall of the cigarette lighter. They must be kept clear because some cigarette lighters are non-standard, which may cause a short circuit between the positive and negative poles of the charger, burning out the cigarette lighter fuse. After insertion, if there is poor contact, press the charger downward and gently rotate it without excessive movement to avoid the spring contacts getting stuck in the notch.