Chainsaw Repair

So the corded model is a good bit strong then the battery model.

Yes.  The newer battery saws score higher in convenience and portability.  But a 12-15A corded saw will outperform in power and sustained used (no batteries to charge). Of course, this assumes we are comparing similar quality stuff - there will always be exceptions.

My general rankings to the guy in the home center aisle:

Gas saws: most versatile; most powerful; hardest to start; highest maintenance; mid-range cost to buy.
Electric saws: good within 100' of an outlet; mid-range power; stupid easy to start; lowest maintenance; lowest cost to buy.
Battery saws: most convenient; least powerful; easy to start; low maintenance; highest cost to buy.

Philbert