It is very simple to get your Wahoo Extended Battery off of your Wahoo Bike Case. If you are having difficulty it may have been caused by sliding the battery in the direction towards the lock (try to remove the battery) prior to releasing the latch, you can cause a bind between the lock and case that then makes it difficult for the lock to release. To fix this problem try the following steps: 1. Slide the battery away from the lock so that there is no pressure on the lock. 2. Press the lock lever downward to release the lock and slide the battery off the case (while holding the lock lever down).