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224 Posts

05-09-2008

cal

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  • Message 1 of 8

battery problem

2008-06-24, 2:14 AM

The first time in my X61 with a six battery pack on an airplane, I got five hours of work.  The last 2 times, I got a little more than three.  I was just writing using an old DOS program and Microsoft Word.  My screen brightness and turned way down and my wireless is disabled.  Any idea why the battery should perform so badly?

 

Thank you very much.

Michael
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210 Posts

12-20-2007

NY

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  • Message 2 of 8

Re: battery problem

2008-06-24, 2:52 AM
First of all, you could check your battery condition in ThinkVantage Power Manager (Battery Information Tab), you will find current Full Charge capacity of your battery comparing to Design Capacity--66.24Wh.

For your case, your current full charge capacity might drop to 60% of design capacity (around 40Wh)

If your current full charge capacity is still good, you may have to suspect your background processes and real time power consumption.

you may use BattStat for real time assumption, it also provides battery information if you don't have ThinkVantage Power Manager installed in your system.

Hope this help.
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23 Posts

05-04-2008

TX, US

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  • Message 3 of 8

Re: battery problem

2008-06-24, 3:29 AM
didnt know there was a six-cell battery...
Lenovo ThinkPad X61 Tablet PC - Intel Centrino Duo Core 2 Duo L7500 1.6GHz - 12.1" SXGA+ - 2GB DDR2 SDRAM - 120GB - DVD-Writer (DVDR/RW) - Gigabit Ethernet, Wi-Fi, Bluetooth - Windows Vista Business - Black - 776796U $1450 buy.com
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210 Posts

12-20-2007

NY

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  • Posts: 210
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  • Message 4 of 8

Re: battery problem

2008-06-24, 5:18 AM
I bet it was 8-cell :smileyindifferent: since 4-cell battery cannot achieve 5 hours for sure.
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224 Posts

05-09-2008

cal

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  • Message 5 of 8

Re: battery problem

2008-06-24, 14:12 PM
I purchased the larger battery.  It may well be 8 cells and not 6.  The thinkvantage battery program indicates no problem with the battery.

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3290 Posts

02-17-2008

Australia

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Re: battery problem

2008-06-24, 14:21 PM
let me ask is this a Sony battery???

check using your serial number and model number

http://www-307.ibm.com/pc/support/site.wss/product.do?doctypeind=10&template=%2Fpartslookup%2FpartsLookup.vm&sitestyle=lenovo
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224 Posts

05-09-2008

cal

291 Signins

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  • Posts: 224
  • Registered: ‎05-09-2008
  • Location: cal
  • Views: 1662
  • Message 7 of 8

Re: battery problem

2008-06-25, 3:00 AM
93P5032       SANYO 8 CELL BATTERY FRU 

Is that better than a Sony?
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3290 Posts

02-17-2008

Australia

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  • Message 8 of 8

Re: battery problem

2008-06-25, 4:21 AM
Sony produced a bad batch of cells with containments which caused life shortening in the best case and some actually overheated to such an extent it exploded, which caused big headache for the Laptop industry as everyone pretty much used them, from Ipods to Dell's Laptop (Dell got really worried about their battery, after the overheating battery incident). So much so the Sony battery drama caused the Sony company to post a big loss in their quarterly profit, and share plummeted.

Sanyo batteries on other hands seem to have intermittent problems with rapid degradation (i don't know the exact cause of the problem, maybe manufacturing defect or something) like the one you reported, of course that do not mean all their batteries are bad. The Sanyo battery on my X31 is still strong after 4 years. Earlier Ipods 3 rd generation that had faulty battery and stuffs, those were all Sanyo batteries. All my Ipod's dead batteries were Sanyo, they worked and after a couple of charge their battery life suddenly shortened for unexplained reason, then it finally died after couple of more cycles. So if you Sanyo batteries are like that you might to consider for a replacement, as good quality battery wouldn't shorten in such manner and given time period.

If you got warranty, i will give Lenovo a call and see whether you are eligible for a replacement.
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