System life

Battery life: use your batteries only when you are away from a power source. That's probably better to remove the battery when your notebook remains plugged in for a long time (could depend on the battery type).
Use electrical surge protection devices to protect your equipment.

Battery life: use your batteries only when you are away from a power source. That's probably better to remove the battery when your notebook remains plugged in for a long time (could depend on the battery type).