Check the details on whichever auger you end up with. Ones like my strikemaster are not ideal for reopening holes. I think its something like they will dull faster cause they aren't designed to bounce around the sides of the already drilled hole. There are some brands that have been rated as better for reopening holes.

In my overall judgment for trapping related I think the ideal would be a brushless battery drill,( milwaukee,dewault,royobi) they all have good reviews. 2 batteries on a good named brand drill will easily get you 50holes. 1 batt would come close on its own.

Auger, I would consider buying all those blue hand crank ones you see at garage sales and auctions for 5 or 10$ you can buy an adapter that attaches them to the drill for 30ish $. Those blades are fairly easy to sharpen by hand you could have several sets for under 50$. That way when you run it into the mud or a log ect.. you can swap out the blades and keep going. Sharpen the blades when you have time.

had a good long talk with a friend that picked up a Strikemaster lithium and saw the cremaic blade when and got a 3 year warrantee, only to go out and the thing would only work in reverse, they came with two batteries.back to Cabelia's and saw the same person that sold the warrantee. being a former lawyer he cautioned his remarks to the person so they did not get the brunt of his anger.She thanked him and then they proceeded. Long story short where is a large batch that only run in reverse and the store knew about it, but sent them out. The manager gave a 100$ rebate back and a new auger that was tested.
now you know why i spell Waran-tee the way I do

I'm probably a bit slow this morning as I haven't had any coffee yet. Where in your story does it explain why you spell warranty the way you do? I'm lost.

This is the adapter I have and used attached to 1 of those 5" blue hand crank augers before I switched to the strikemaster. I started with this set up years ago using a dewault 18v with the nicad batteries. That drill couldn't of done anything bigger, and got hot after a couple holes in a row. The brushless lithium drills now days don't even seem to break a sweat.