The battery is designed to fit securely in place and some pressure may be needed when inserting and removing it. When inserting the battery, apply pressure to one lock ring at a time. Body weight should be enough. They are fully secured when you hear a click sound and they are not loose in any way. Please note that tools should never be used as that may damage the clutches. If you feel you need tools to fasten the lock rings, or if you suspect that the battery isn’t locked correctly, then please keep the board away from water and submit a support request and we will assist you.