Opening and trying to fix a leaked HP 48S

[mfleming]

(11-17-2020 08:51 PM)ytterligare Wrote:  Anyone can explain how to "unhook the positive battery terminal" ? Any other suggestions ?

The positive battery terminal has a hole in the back, and a plastic hook in the wall behind it goes into the hole. You need to lift up the terminal to free it from the hook and then pull the terminal away from the wall so that the terminal clears the hook when you lower the terminal back down.

Try pulling the terminal away from the wall using a small screwdriver blade or similar tool inserted in the top loop of the terminal. You will feel the hook stopping the movement, and you can probably see how the hook holds the terminal in place. A thin blade inserted between wall and terminal will stop at the hook instead of going all the way down to the bottom of the compartment. Unhooking is basically an upward then forward movement. Rreverse the movement when reassembling.

HTH!
~Mark