Use chargers and cables that meet the device manufacturer's requirements or come from a reputable supplier. Check that a charger supports the type of charging your device expects, and do not rely on damaged, frayed, or unusually hot accessories. A connector that fits is not enough to guarantee that the charger and cable are appropriate for the device.
Charge devices on a firm surface where heat can dissipate. Soft bedding, clutter, and closed containers can trap heat around a phone, tablet, or battery pack. Keep liquids away from charging equipment and avoid pulling a plug out by its cable. If a device becomes unexpectedly hot, smells unusual, or shows visible battery damage, disconnect power when safe and stop using it.
Follow the manufacturer's guidance for long-term storage and charging. Modern devices manage many routine charging tasks automatically, so elaborate charging rituals are rarely necessary. Keep software current and inspect accessories periodically. When traveling, protect connectors from dust and bending, and use a power adapter suited to the local electrical supply. Sensible care cannot prevent every failure, but it can reduce avoidable strain and make problems easier to spot early.