Bad quality cable slows down the charging speed since it's equipped with no or just a few copper-core wires, which reduces the conductivity performance and in turn slowing down the charging speed.
What is a charger in car?
A car USB charger is a small adaptor that plugs into the cigarette lighter/accessory port found on virtually all cars and provides one or more USB outputs. As the cigarette lighter/accessory port provides a nominal 12 volt output, the car USB charger converts this voltage to the 5 volts required for the USB supply.
What is a USB station?
Ports on USB charging stations are dedicated charging ports, meaning they provide faster speeds than the ports on PCs and laptops. Many Android smartphones incorporate Quick Charge technology, a feature that ensures devices are charged at the fastest rate possible.