Woohoo my ultra bay battery arrived! [pics]

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mmmkay · #1 Post by **mmmkay** » Wed Nov 08, 2006 12:55 pm

Umm.. right.

Now that's better

Interesting how the remaining capacity in this case is greater than design capacity :p

Website · #2 Post by **tfflivemb2** » Wed Nov 08, 2006 1:15 pm

Wouldn't 655.35WH be nice?

P.S.
I added the [pic] line to your Subject line, so that the pics don't disappear on ya.

dsigma6 · #3 Post by **dsigma6** » Wed Nov 08, 2006 2:50 pm

Wouldn't it be nice to run off battery for 24 hours with full brightness, wifi running, and constant HD access!

Did you discharge the battery and then it woke up?

mmmkay · #4 Post by **mmmkay** » Wed Nov 08, 2006 3:19 pm

Nope, apparently it's a new old stock battery I bought off a guy on ebay.

I was hoping that it was something the guy bought like last year but he wasn't able to tell me that information...

Battery manufacturing date is 2002-07-19, first used date is 2006-11

It has 0 cycles at least... :\
I'm gonna let it charge up and see how the battery performs before leaving any feedback

zouav · #5 Post by **zouav** » Wed Nov 08, 2006 8:06 pm

Is that a special software you are using to know all there is to know about your battery

Newbie question I am sure, sorry !

Website · #6 Post by **tfflivemb2** » Wed Nov 08, 2006 8:52 pm

It is called Battery Maximiser.

If you have a green battery icon next to your system tray, then you already have it installed. You can left click on the battery icon, then click on "battery information", then click on "battery health".

Terrahawk · #7 Post by **Terrahawk** » Wed Nov 08, 2006 8:53 pm

One thing you should know about lithium-ion batteries:

Aging is a concern with most lithium-ion batteries and many manufacturers remain silent about this issue. Some capacity deterioration is noticeable after one year, whether the battery is in use or not. The battery frequently fails after two or three years. It should be noted that other chemistries also have age-related degenerative effects. This is especially true for nickel-metal-hydride if exposed to high ambient temperatures. At the same time, lithium-ion packs are known to have served for five years in some applications.

(source: http://www.batteryuniversity.com/partone-5.htm)

The battery is more than four years old and it is possible that it is still in good condition. The odds are against it though, despite it being "brand new" and unused.

jason5885 · #8 Post by **jason5885** » Fri Nov 10, 2006 1:56 am

How does a battery get to reach 65535 cycles?:?

mmmkay · #9 Post by **mmmkay** » Fri Nov 10, 2006 2:07 am

New battery, I'm guessing that the EEPROM contents haven't been written to yet

NS · #10 Post by NS » Fri Nov 10, 2006 2:12 am

jason5885 wrote:How does a battery get to reach 65535 cycles?:?

Jason,

A laptop/notebook Li-ion battery will not hit 65535 cycles. The maximum cycles that a notebook battery can hit is 500-600 cycles and it will be dead. Dead in terms of it can't hold a single charge any longer.

Li-ion batteries will deteroriate with time. No matter whether you use it or not.

#11 Post by **BillMorrow** » Mon Nov 13, 2006 6:11 am

jason5885 wrote:How does a battery get to reach 65535 cycles?:?

it WILL reach that number when something in the software is screwed up..
that would be some overflow, underflow or some such where it tries to display a negative number or...??!!

no time to get into details..

trust me it can happen..
not that the battery has reached that many cycles..

basically, its an ERROR..

christopher_wolf · #12 Post by **christopher_wolf** » Mon Nov 13, 2006 6:30 am

BillMorrow wrote:
jason5885 wrote:How does a battery get to reach 65535 cycles?:?
it WILL reach that number when something in the software is screwed up..
that would be some overflow, underflow or some such where it tries to display a negative number or...??!!

Oh that's right, good catch Bill! 65535 is the highest number which can be represented by an, unsigned, 16 bit binary number ((2^16)-1). So that is probably an overflow of some type, now that has jogged my memory I remember that occuring on the forums with the battery sometime back awhile ago.

Ack, late at night...can't think straight....I should get to bed.

vlyne · #13 Post by **vlyne** » Mon Nov 13, 2006 6:48 am

At 65535 cycles all (16) bits are set to 1 and at the next count cycle the register overflows and all bits are then set to 0. It could be an error or a design feature that allows for one startup cycle? Bill's been around longer than most of us so I'm happy to accept it's an error

Edit: Hey, I am a Freshman afterall! Hmmm...Does that mean my bits are all set to zero??

rabbarba · #14 Post by **rabbarba** » Mon Nov 13, 2006 12:51 pm

Where do you download that win xp skin?

snessiram · #15 Post by **snessiram** » Mon Nov 13, 2006 2:30 pm

@rabbarba: There's a topic about it in "Pictures of your ThinkPad & desk setup".

Woohoo my ultra bay battery arrived! [pics]

Woohoo my ultra bay battery arrived! [pics]

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