How long you first charge a latop’s battery no longer has any bearing on its performance. That said, there are definite physical conditions that affect overall battery life. Chief among them is temperature, and heat is the enemy. Though Lithium Ion cells have a comparatively high operating temperature (212 to 302 degrees Fahrenheit) as opposed to NiCd (95 to 134 degrees), their capacity degrades at a faster rate when exposed to heat.
Ideally, store unused laptop batteries in a cold, dry environment to prolong their life. Leaving a laptop plugged into an AC outlet for extended periods poses a risk to batteries because of heat exposure. One way to avoid this threat is to remove your battery when your system is plugged in for long stretches.
A more sensible approach is to unplug your notebook once in a while, which cools things down and helps push the battery toward its recommended storage charge of 40 percent. At full charge, batteries degrade the swiftest. Be careful, though, because depleting Lithium Ion cells completely increases the likelihood of battery failure.
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