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Print 9 comment(s) - last by lemonadesoda.. on Nov 12 at 7:38 PM

"IEEE Standard for Rechargeable Batteries for Portable Computing" gets update due to laptop fires

The IEEE will revise its laptop battery standard, coded IEEE 1625, which was approved back in 2004 as part of the "Livium" family of battery standards. The revised standard seeks to improve overall performance, make systems more reliable and address concerns over the recent laptop battery fiasco.

IEEE 1625 adopts a systems approach by addressing the battery envelope from cells to the mobile computers they power, both alone and in concert. It encompasses such areas as battery pack electrical and mechanical construction, cell chemistries, packaging, pack and cell controls, and overall system considerations. 

In revising IEEE 1625 to further safeguard the reliability of these batteries, we will leverage the streamlined corporate standards process and incorporate lessons learned in developing the IEEE 1725 standard for cellular telephone batteries, says Edward Rashba, Manager, New Technical Programs at the IEEE-SA. We have an opportunity to further strengthen the Livium portfolio, which already incorporates hundreds of man-hours of technical work and represents consensus views on best practices from leading industry experts.

The update looks to guide the industry in planning and implementing controls for battery design and manufacture. It also defines approaches for evaluating and qualifying such batteries, verifying their quality and reliability, and educating and communicating with end users.

The 1625 update will be a global effort, says Rashba. The leading laptop OEMs and battery manufacturers such as Apple, Dell, Gateway, Hewlett-Packard, IBM, Lenovo, Panasonic, Sanyo, Intel and Sony have indicated strong interest to participate.

The group will meet bi-monthly in the U.S. and Asia, with project completion expected within 18 months. The first working group meeting is scheduled for November 15-16 at the Intel in Santa Clara, California. A follow-on meeting is planned in Japan for January 16-18 of next year.



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How about UNIVERSAL batteries
By AlexWade on 11/10/2006 8:45:56 AM , Rating: 3
Why do manufacturers change batteries with every new laptop? To make more money? How many people actually buy a second battery? Not many. Instead, why not make a universal battery design. Everybody will win. The manufacturers will save a ton in design cost, thus making laptops cheaper. And we'll be able to get quality and cheap replacements forever.

And while we are on universal things, why not make a universal power connector?

This idea makes too much sense.




RE: How about UNIVERSAL batteries
By Madzombie on 11/10/2006 9:20:46 AM , Rating: 2
Because that's exactly what corporate America doesn't want: customers using what they already own for as long as they work, rather than until they "need" to replace it.


RE: How about UNIVERSAL batteries
By TomZ on 11/10/2006 10:38:58 AM , Rating: 2
Batteries are not universal because there is no common physical architecture for laptop internals; instead, they are optimized for a particular design. In addition, the laptop manufacturers buy so many batteries that the cost to design a custom battery pack is low compared with the volume of batteries they purchase. It really is as simple as that; there's no conspiracy going on.

Intel has been working on a modular laptop architecture. You might want to google that and see if batteries are considered within the scope of that design.


By crystal clear on 11/10/2006 11:08:48 AM , Rating: 2
2007 should see the start of Intels Common Building Block or
CBB-it aims to standardize notebook components amongst the first tier notebook manufacturers.
Under this programme batteries could be standardized-but it all depends?? .


By lemonadesoda on 11/12/2006 7:38:16 PM , Rating: 3
I'm very sorry, I clicked the wrong button. I score you +1 but gave you -1 by mistake. This is a +5 post IMO.

I have long advocated standardised battery sizes. Just like there are 1.5v, 5v and 9v standards, along with A, AA, and AAA sizes (or all the C sizes for penny shaped batteries etc.), or D for the big heavy ones for torches and radio-controller devices etc., I strongly wish there was a standard size for high-power rechargable battery packs commonly used in laptops and MP3 players (and other stuff).

There could be a size standard, like L, LL, LLL followed by a number to cope with size/shape. There could be +/++/+++ to indicate mWh. (or just show it, e.g. duracell LL2 rated at 1400mWh)

If only the IEEE would create a standard for size and connector for these batteries, the industry could advance.

It doesn't stop proprietary shapes and sizes if a manufacturer wished.

But a common standard for battery shape, size and voltage also allows a standard shape and size for batteries and BATTERY RECHARGERS, and allows us to reduce our collective battery footprint.

For any techno-geek, just add up the number of DIFFERENT battery and charger formats that you have got. It is aweful.


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