Can I Use A Charger With Higher Amperage. That is patently untrue else garages would all have 10 AMP chargers. Basically the higher amps will allow you to charge a battery in a shorter period of time.

Ultimately its really the amperage that determines how fast a charger will supply power to your device. But a lot of them will. Especially the ones that list 2 different Amp ratings common for Dell and HP to say 195v 334A462A.
But a lot of them will.
So if you end up with a 100AH rated battery you can use a 25 Amp Charger. If you want to learn all about using a lower or higher wattage charger for your laptop then youre in the right place. There is absolutely no way lower amperage in any circumstances can damage any circuitry of any sort. In that case having a 5 amp charger is going to be a very slow charge for you and you should scale up the amps that your charger can deliver until the charger output is.
