Enough is relative, and depends some on what batteries-classes you are running. 1S, 2S, 4S, ? And how much non stop you want to practice, or do you take breaks to wrench a little, etc.

Can say that is a solid charger with a fair bit of power, and desirable flexibility-advanced features. The power supply is possibly one of the best combinations of power, small size & weight, cost, and reliability going (note the slightly higher 15+V voltage, great for that charger but may be too much for other stuff). Agree with deeretrax that ProgressiveRC service is top notch in my experience and everything I have heard.

You mention wanting to charge multiple batteries. If they are the same cell count and no larger than say 4S, perhaps consider adding a parallel charge board (aka paraboard). Of course read up on parallel charging a little, there are a few limitations, it works best if packs are at similar discharge (voltage) levels for example. But in the right circumstances that puppy could charge 4 lipos faster than a 4 port 50 watt deal can, or faster yet with fewer at a time.

Caveats aside, it’s quite likely a very sweet upgrade.