Lift the bottom edge of the battery up slightly.

Do not hinge the battery beyond 45 degrees, or you risk damaging the inter-cell connectors.

Use tweezers or your fingers to peel the single clear plastic covering off of the entire bottom side of the battery.

At this point, the battery's four adhesive strips are exposed. Be careful handling the battery and try not to touch the strips.

Align the battery such that it falls in place with the screw post near the Smart Connector.

Be sure not to trap the Smart Connector cable underneath the battery.

Gently lay the battery down into its recess and press it firmly into place.

For optimal performance, calibrate your newly installed battery after completing this guide: Charge it to 100% and keep charging it for at least 2 more hours. Then use your device until it shuts off due to low battery. Finally, charge it uninterrupted to 100%.