Unlock the battery latch [1]. Holding the battery lock lever in the unlocked position [2], remove the battery pack in the direction shown by arrow [3]and [4].

Note: Large battery used in some models only has one battery latch.

Please perform the following step as shown in the picture below.

When installing: Install the battery pack along the slide rails of the slot. Then make sure that the battery release lever is in the locked position.