Try another brand of battery. They are not all the same thickness.
No. You'll have to convert with upgraded head, control board, heading sensor, and remote. Probably around 4 to 500 dollars.
2018 G3 Sportsman 17
2018 Yamaha F90 four stroke
Ultra 106sv bow/console
Livescope Terrova 24v Ionic lithium batteries
What jigflinger said. Batteries are different . Some are thin and don't make good connection
My Terrova has the same prob with a new remote. New battery new remotes. Nothing changes. I beat it on the console till it turns on. Problem fixed