All about MP3 player batteries: Updated

By Edvarcl Heng, CNET Asia on 27 June 2006

Tags: alkaline | battery | lithium | lithium-ion | mp3 | player

1. The thing about battery life
2. What's your battery type?
3. Flash versus hard drive: Who guzzles more?
4. Is it going to rain? How weather can affect battery performance
5. Hold me, thrill me, drain me
6. Growing old gracefully: Battery-saving tips

Hold me, thrill me, drain me: Battery-sapping features

Besides battery capacity itself, the plethora of features that inhabits an MP3 player and how often they are utilised also have a detrimental effect on the playback time for a battery.

Much vaulted new features that are appearing in the next generation of MP3 players, like gaming functionality, Bluetooth connectivity and larger LCD screens, add to the burden of the battery.

Even standard features like equaliser controls which enhance the audio fidelity for a MP3 player can cut into how much total juice a battery can give.

Backlight: on or off?

Fast forwarding, voice recording and the skipping of tracks also force the player to scramble into its memory for the requisite track. A good example would be Apple's ClickWheel which, though no doubt a deliciously tempting interface to play with, starts sapping battery life the moment users begin spinning through all 20GB worth of their MP3 collection.

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Isii
15/01/2005 06:29 AM

Some important issues are not addressed in this article! -NiCd batteries need to be recharged after they are drained off juice, recharging them when they have 50% juice will reduce their life time. Is there similar issues with Li-ion, NiMHbatteries? -Is it better/allright to keep Li-ion/NiMH batteries under constant charge? -Is one charging method better than other? (fast/normal, constant current, cinstant voltage) -is there a comprimise as NiMH capacity increases (e.g compare 1800mAh to 2400mAh), such as lifetime?

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