The battery charge light is the right light on the front edge
of the computer. It turns on (solid) when a battery pack (in the
battery bay or MultiBay) is charging. It turns off when fully
charged. It blinks in a low-battery condition.
When the battery charge light turns off, the battery packs are fully
charged.
1. Pull forward on the primary battery release latch to release the
battery pack.
2. Remove the battery pack from the primary battery bay.