Business Laptop Battery: swollen battery cells. Internal gas generation expands one or more lithium pouch cells.

The distinguishing clue

The case, keyboard or touchpad begins lifting and the pack may feel warm.

Checks before an assessment

Record whether the problem occurs with the direct charger, the office dock or both. Save open work before any normal power transition.

Stop point: Protect current work before disconnecting power during battery diagnosis.

Workshop confirmation and repair

Device-level check: Assess swelling without load testing, then identify the exact replacement pack and inspect the surrounding case for pressure damage.

Targeted check: Shut down, disconnect power and inspect without pressing the affected area. If confirmed: Remove and replace the swollen battery using safe handling and disposal.

Repair boundary: Replace the supported battery and correct any dock or firmware condition that affected it.

Related cause to rule out

When runtime falls steadily and the laptop may shut down when demand increases, also consider Business Laptop Battery: worn battery cells before choosing a repair.

Checks after the work

After repair or replacement, check direct charge, dock charge, meetings workload, sleep and repeated transitions.

For an AEPC repair assessment in East Auckland, provide the exact model and observed clue. Call 027 908 8880 before visiting the Burswood workshop.