How to change the Olfi remote battery
On the under side of the waterproof remote control, there are 4 small rubber looking circles. With your craft knife, gently lift the rubber covers. Underneath there will be small screws. Using your screwdriver, unscrew these screws to remove the back door. The rest is pretty self explanatory. However, when putting the back door back on, ensure you line up the 3 points on the back door and the battery compartment, to ensure that the door goes on easily. When you’re all done, the rubber covers you removed at the start should just sit back in place when everything is put back together – just ensure you tamp them down.