"I used a screwdriver and pried it open - slowly jimmied it all the way around. It did make small marks on both the front and back panel where I pried...but I sanded them off.
My battery was fixed to the back panel by double sided, black tape. It was a delicate procedure getting it off without breaking the back panel. After I figured out it was tape, I used my regular screwdriver and slid under the tape.
Unplugs very easily and snapped back together.
Just tried it again to make sure I did not break anything before writing this to you. It is good to go.
Also, the screws take a T6 torque bit fitting. You will run the risk of stripping the heads if you use a Phillips screwdriver.
I have the Izzo 3000 golf gps, it has screws on the back which came out fine. The battery was soldered in, using a solder iron I took it out and then soldered in the now battery I purchased from eBay. As for your Sky Caddie, I'm sure a sharp blade of some kind can be wedged into it somewhere making it pop open. Have you checked You-Tube for a video that might show you how, good luck.