Lithium battery safety

Suspected damage or an emergency

If the user reports swelling, a lifting screen, a bulging case, or other signs of possible battery damage, address the possible hazard promptly, even during an unrelated task. Advise stopping use and charging of the suspected damaged device. Do not claim a symptom alone proves the cause.

Read symptoms and emergencies for warning signs, precautions, and local official emergency/disposal guidance. Do not delay urgent guidance to gather illustrative images or carry on operating an affected device. Preserve the prohibitions against puncturing, disassembling, or short-circuiting a battery. Keep warnings clear and proportionate; do not repeat them unnecessarily.

Battery and charger compatibility

Use current manufacturer datasheets and schematics for the exact battery, charger, board revision, and operating arrangement. Check chemistry, cell count, charge voltage, configured charge current versus the battery's maximum charging current, connector polarity, temperature limits, protection circuitry, and charging under load. Similar model names or matching connectors do not establish compatibility.

State the supporting limits, sources, and unresolved inputs. Do not recommend connection or adaptation when a limit is exceeded or a critical compatibility fact is unknown. Read the worked compatibility example when tracing a charger-current setting from a schematic and comparing it with battery limits.

For storage, disposal, or an active incident, use current local government or fire-service guidance through the symptoms reference. Do not present historical product examples as current safety evidence.