New 9-Cell Battery

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TimWang · #1 Post by **TimWang** » Sun Feb 12, 2006 11:17 pm

Hi,

I just recieved my new 9-cell battery today and I was testing it out. I got it new from e-Bay so its not an IBM battery. However, considering it was half the price of an IBM, I think I got a good deal. I just had one question about the battery. How long is it suppose to last? The battery meter has been all over the place. It fluctuated from 3 hours to almost 5 hours and now, has settled at 4:30. BTW, the full capacity on my battery is 71.41Wh... not really sure what that means.

#2 Post by **draco2527** » Mon Feb 13, 2006 1:44 am

Here is a link to the post related to 9-cell batteries on EBay, these are OEM and come with 0 Cycles.

http://forum.thinkpads.com/viewtopic.php?t=19714

These batteries will give you about 7.7Wh when fully charged.

I never had the battery meter fluctuate that much on a set power scheme on a TP ( I have seen it on Dell's etc). So I can't comment, being that it is also non-oem could be part of the problem.

I am sure someone else will chime in on this.....

TimWang · #3 Post by **TimWang** » Mon Feb 13, 2006 9:16 pm

Hmm... after more use, I seem to be only getting 4 hours from a 9-cell battery. Is that normal?

naro · #4 Post by **naro** » Mon Feb 13, 2006 9:31 pm

i wanted to buy that 9-cell battery, but he din reply mi whether he sends to the UK...

TimWang · #5 Post by **TimWang** » Tue Feb 14, 2006 1:25 am

I don't think that my new battery is charging/discharging properly. When I am using it, the battery meter would "jump" from around 30% to 5% within seconds. When I am charging the battery and the meter gets to around 85%, it just "jumps" to 100% immediately. Also, I notice that the full charge is 65Wh when its designed to have 71Wh.

This is a new battery with only 1 cycle so is there any way I can fix this problem? Maybe "reset" the battery

dr_st · #6 Post by **dr_st** » Tue Feb 14, 2006 9:38 am

Try to run battery reconditioning (using the battery maximizer wizard). It may help recalibrate it.

Ryan T. · #7 Post by **Ryan T.** » Wed Feb 15, 2006 10:01 am

TimWang wrote:Hmm... after more use, I seem to be only getting 4 hours from a 9-cell battery. Is that normal?

Unfortunately you get what you pay for, and it is usually the case that generic batteries will not perform as well as OEM IBM parts. I got 4 hours with my 6 cell when my Thinkpad was new, and I even have an SXGA+ screen. With a 9 cell I would expect somewhere around 5.5-6 hours new., assuming high battery conservation settings.

TimWang · #8 Post by **TimWang** » Wed Feb 15, 2006 7:07 pm

Ryan T. wrote:Unfortunately you get what you pay for...

Yea, I think I learned my lesson. After registering only 3 cycles on this new generic 9-cell, its only showing 60.33Wh. That's nearly a 15% drop in charge capacity from design specs. I emailed the customer support department at the online eBay battery shop and I'm thinking I might have gotten a defective unit.

dog1ph · #9 Post by **dog1ph** » Wed Feb 15, 2006 11:08 pm

i purchased same 9cell battery from ebay and it came with original lenovo/ibm packing Dec. '05

here's a link on handling a new battery

http://www.studentcomputers.co.uk/lapto ... attery.htm

- battery fluctation i experienced intially but after going through the article and following battery health tips my battery has a full charge of 6.5-7.0 hours after a running battery recondition steps once a month and its been like that up to this writting

amrav · #10 Post by **amrav** » Wed Feb 28, 2007 4:58 pm

Can somebody point me to what are the
"battery reconditiong steps" ?

Thanks in advance.

New 9-Cell Battery

New 9-Cell Battery

Battery reconditioning steps.

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