Smitty.
I have a cuda that i use one the ice. I tried it on my boat first and it worked ok.
So i bought a portable battery pack from can tire. Then i made a rod to hold the transducer down the hole to the bottom of the ice. A small bubble level helps to get the transducer straight down.
The skimmer transducer works good and you can see your bait and the fish.
No need to buy the portable kit.