Use both plastic cards to lift the entire battery assembly up and away from the case.

If the battery still feels adhered to the case, reapply adhesive remover and use the plastic cards in problem areas to make sure all three cell groups are fully separated from the case.

Remove the battery.

During reassembly, double-check the fit and alignment of your new battery before sticking it down.

If your battery came with adhesive pre-installed on the bottom, flip it over and carefully peel away the liner to expose the adhesive. If your battery did not come with adhesive, apply a thin double-sided adhesive tape such as Tesa 61395 to keep your battery in place.

Carefully position the battery and set it into place. Press and hold each cell group firmly for 5–10 seconds to secure it to the lower case.