Overview

• Samsung says modern phones halt at full charge and only apply occasional maintenance charges to keep the battery at 100%.
• Apple notes iPhone stops charging when full and tapers current near full to limit heat, while advising users to unplug when possible.
• A technology specialist at Outplayed warns that trickle charging can progressively wear batteries, with sealed-phone replacements often costing over £100.
• London Fire Brigade advises against leaving devices continuously on charge, warns of risks from heat, damage or short circuits, and urges people not to charge in beds or under covers.
• Experts recommend unplugging at 100%, enabling optimized charging features, avoiding hot locations, and not using the phone while charging to reduce overheating.