Dual field PI mod
Don't have pictures but Since I had several excalibur batteries setting around. I took a heyco fitting, installed it on the case. Then ran the Neg/Pos wire from the board thru the heyco, then added a Ikelite connector to the cable. So once the Box was closed there was no need to ever open it again. Since I could charge the excalibur battery by itself.
Both the DF and the excalibur use the same voltage. I never really liked the DF and felt my excaliburs could come close to the depth of the PI.. Ended up giving it to a friend.
If you need any part numbers let me know I can make a quick list. Very easy mod, if you have excalibur battery setting around. I liked it for once the box is sealed, no need for opening and closing and a possible leak in the future.