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how to prolong your laptop, iPod battery life
information from Apple:
Your New Notebook
Be sure to fully charge your portable when you plug it in for the first time, and then run Software Update to ensure you have the latest software. Apple periodically releases updates that may improve battery performance.
For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her MacBook Pro on the train, then plugs it in at the office to charge. This keeps the battery juices flowing. If on the other hand, you use a desktop computer at work, and save a notebook for infrequent travel, Apple recommends charging and discharging its battery at least once per month. Need a reminder? Add an event to your desktop’s iCal.
Long Term Storage
If you don’t plan on using your notebook for more than six months, Apple recommends that you remove and store the battery with a 50% charge. If you store a battery when it’s fully discharged, it could fall into a deep discharge state, which renders it incapable of holding any charge. Conversely, if you store it fully charged for an extended period of time, the battery may experience some loss of battery capacity, meaning it will have a shorter life. Be sure to store the ejected battery at the proper temperature.
Notebook Temperate Zone.
Your Apple notebook works best from 50° to 95°F. You should store them in places with temperatures of -13° to 113°. That’s 10° to 35°C and -25° to 45°, for the metrically inclined. Keeping your Mac as near room temperature as possible (22°C) is ideal
Some Terms You Need to Understand
“Battery life” means the time your iPod will run before it must be recharged (sometimes this is also called “playtime” or “runtime”). “Battery lifespan” means the total amount of time your battery will last before it must be replaced.
iPod Temperate Zone.
Your iPod works best from 32° to 95°F. You should store it in environments of -4° to 113°. That’s 0° to 35°C and -20° to 45° for the metrically inclined. Keeping your iPod as near room temperature as possible (22°C) is ideal.
Update to the Latest Software
Always make sure iPod has the latest software from Apple, as engineers may find new ways to optimize battery performance. For instance, early model iPods without a dock connector benefit from update 1.3 or later. Using iTunes 7.0 or later, you can update your iPod with the latest software. Put your iPod in its dock or plug it into your computer and iTunes will notify you if a new update is available.
Use iPod Regularly
For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Be sure to go through at least one charge cycle per month. If you use your iPod infrequently (gasp), you might want to add a reminder to your calendar program.
Extend Your Battery Life
If you want to extend the battery life of your iPod for any given charge cycle, you may conserve power by following these tips.
Hold and Pause
It may seem obvious, but set iPod’s hold switch when you aren’t using it. This will prevent iPod controls from inadvertently waking up iPod and using unnecessary power. Also, if you are not listening to iPod, pause it, or turn it off by pressing the play button for two seconds.
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