06-08-2007, 11:49 AM

Dunno if this should go in the iPod section, but i did switch to iPod, and this completes my switching all my products over to Apple ones.

well, since I've had my iMac, I've got into tons of new songs. I started to realise that my 256mb Creative Zen Nano just wouldn't cut it any more. So I bought an iPod shuffle.

The thing that surprised me the most is that this 1GB shuffle is bigger than my 256mb Creative player. Last time I buy a non-iPod player!

Now, I have a question. I've heard about calibrating batteries on laptops and stuff, should I calibrate the battery in my shuffle?

Here is a pic of it with my old Creative player:

06-08-2007, 01:26 PM

Q: What is the best way to handle charging/discharging/storage of lithium ion batteries?

A1: How to prolong lithium-based batteries

A2: Lithium ion batteries are good for 300-500 charge/discharge cycles. A "charge/discharge" cycle generally consists of an extended charging period, and an extended discharging period. A quick charge, listening for 30 minutes, and charging again, for example, does not constitute a full "charge/discharge cycle", but could rather be considered a portion of one.

Also, many, many factors affect how much you get out of each charge, as well as how long the battery will last overall. The main factors include charging patterns, the routine amount of discharge (i.e., Do you use it until it dies? Use it for an hour or two and recharge?), temperature, storage, usage frequency, etc. Lithium ion batteries do not take kindly to frequent full or complete discharges. When possible, the optimal usage pattern - for any lithium ion battery - is a partial discharge, followed by recharging. A partial discharge can be anything less than a full discharge. However, an occasional full discharge is desirable (e.g., once every 30 charges) to calibrate the battery. Lithium ion batteries do not significantly degrade, or develop "memory", even if charged at irregular intervals; irregular charging is acceptable. An iPod can also safely be attached to external power for extended periods of time. (For extremely extended periods of time, such as months, the battery will essentially be the same as if it were in "storage"; lithium ion batteries do not store well for extended periods of time at full charge. However, there is no way around this under these circumstances.) When possible, always use the AC adapter (or vehicle adapter) for extended charging, not a FireWire cable attached to a computer.

It is generally recommended to store lithium ion batteries at about 40% charge. However, the iPod draws power even when it is off, meaning that it will soon deplete any charge that it has. If you will be storing your iPod for an extended period of time (i.e., weeks to months), it is recommended to store the unit in a cool place; charge level is unimportant, as the charge will be completely depleted after several days. The most harmful combination for storage is full charge at high temperature (i.e., in a hot car).

http://www.ipodbatteryfaq.com/