Guide

No, a swollen power bank is unsafe—stop using it, don’t charge it, and take it for proper recycling.

Battery swelling in a power bank comes from gas buildup inside the lithium cell—stop using it now and arrange safe recycling.

A bulging power bank points to gas inside lithium cells from age, heat, damage, or charging abuse—stop using it and treat it as a fire risk.

A power bank swells when gas builds up inside its lithium-ion cells from heat, overcharge, aging, or damage.

A swollen power bank points to gas buildup from heat, overcharge, age, or damage—stop using it and move it to a safe, ventilated spot.

Power bank swelling happens when gases build inside lithium cells from stress, age, heat, or damage.

Power bank cracking often traces to heat, pressure, brittle shells, or cell swelling; stop use and check for bulging or odors.

Power bank noise during charging usually comes from coil whine, the wall adapter, or a failing battery—stop use if you hear hissing, popping, or smell fumes.

Power bank noise usually comes from coil whine; hissing, popping, heat, or swelling signal battery failure—unplug and move it to a safe surface.

Power banks heat up from normal electrical losses; extra warmth points to high load, poor airflow, aging cells, or a fault in the pack.