Be careful when you isolate the battery using a battery blocker. The battery contacts are easily bent or broken, resulting in irreversible damage.

Ensure that the iFixit logo on the battery blocker is facing up.

Slide the battery blocker underneath the left side of the logic board's battery connector at a 35 degree angle.

The battery blocker's right prong should slide between the left side of the logic board's battery connector and the battery's contact pads. The left prong should slide under the logic board.

Don't push the battery blocker underneath the connector or logic board with excessive force. If you're having trouble fitting the battery blocker underneath the logic board, refer to the next step for information on loosening the logic board. You can also try using a playing card to disconnect the battery instead.

The battery blocker or playing card should slide under the logic board without encountering any blockages. After insertion, they should rest at a 15 degree angle.

Leave the battery blocker in place as you work.