Service tag · 5 matching pages
Diagnose short laptop battery life by separating reduced battery capacity from high power consumption, bright displays, performance settings, background activity, graphics load, radio use, and sleep behavior.
Separate a bad laptop battery from a failing, damaged, underpowered, or incompatible charger by comparing battery-health evidence, charger recognition, power behavior, and known-good exact-compatible substitutions.
Diagnose a laptop that runs on AC power but shuts off or cannot remain powered when unplugged by checking battery detection, capacity, charging state, connection, and deeper power-path faults.
Diagnose a laptop that will not charge by checking the full power path: outlet, charger, cable, connector or USB-C port, required wattage and power delivery, battery state, charging limits, and internal charging hardware.
Diagnose a Windows laptop that detects external power but does not increase battery charge by checking intentional charge limits, adapter recognition, battery health, charger capacity, USB-C compatibility, and hardware faults.