Laptop Battery Care Guidelines

  1. Memory effect does not affect lithium-ion batteries, only older Nickel-Cadmium batteries.
  2. Keeping battery fully charged and power supply plugged in is harmful to your computer and battery only because of heat. The heat is battery enemy not 100% of charge.
  3. Avoid full battery discharge (lithium-ion) - frequent discharge to 25%-35% of the capacity level is recommended over full discharge. Don't "deep-cycle" like Ni-Cd.

Battery Gauge Calibration Procedure

  • Charge the battery to 100% of its capacity.
  • Keep it fully charged for 3 hours to lower its temperature from the charging process.
  • Disconnect the power supply and set the computer to hibernate automatically at 5% (it can be higher but never below 5%).
  • Leave the machine discharging until it hibernates itself.
  • When the computer shuts down completely, let it stay in the hibernation state for 5 hours or more.
  • Plug the computer to the A/C power to perform a full charge non-stop until its maximum capacity (100%).