Be careful with this step, as it's easy to stick the battery in the wrong spot. Take your time and work slowly.

While holding the battery over its spot on the frame, temporarily reconnect the battery cable to ensure the battery gets aligned properly.

Keep the battery within the segmented outline on the screen.

Place the battery onto its spot in the frame and press down to adhere it.

If you have more internal reassembly remaining (like reconnecting other cables) disconnect the battery. Otherwise, you can keep the battery connected.

Return to your original guide and continue reassembly.