Everything looks to be well done. There is an input and output type-c. There is an adapter for the cigarette lighter, you can connect a car vacuum cleaner without putting a regular battery. Expensive, but similar ones cost about the same. With Ali it is not clear what will come and count without a guarantee. There were doubts that the weaker model would start the 3.5L engine, as they say, I took it with a margin, given that the batteries degrade simply by themselves. Yes, you could just buy a new battery, but this would not save you from a possible re-situation, I rarely drive, the trips are short. Now I have confidence that I will start up in almost any situation. In addition, when asked to light a cigarette, it is safer to connect your starter-charger, and not risk once again the electronics of the car. Who has a smaller engine, you can take a simpler model.