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Where is the backup battery in a IBM 2645-51U laptop?

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What is error code 161


http://www.howtomendit.com/answers.php?id=12813
It is all explained above, and more.

http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=lwik-3sr4pw
Above are the error codes and explanations.

161
(Dead battery.) 1. Go to Checking the Backup Battery
2. Backup battery.
3. System board.


http://www-307.ibm.com/pc/support/site.wss/LWIK-3RUQGS.html
Above is your support link, so you can download a manual etc.

Sep 22, 2010 | IBM ThinkPad 600E 2645 Notebook

1 Answer

IBM ThinkPad T30 2366 not start without battery


It is NOT Battery or Power Supply it is your laptop itself has gone faulty... You need to troubleshoot the Motherboard, hard Drive etc, to find the exact problem that will allow you laptop to start. A laptop, will go, with just the power supply, and NO battery, if it doesn't either Power Supply is faulty, regardless of lights, OR the laptop's motherboard or hard drive is faulty, you must isolate problem.

Feb 26, 2010 | IBM ThinkPad T30 2366 Notebook

2 Answers

IBM Thinkpad will not hold date & time.


Replace the backup battery and run BIOS Setup Utility to reset the time and date. This will resolve the issue.

Sep 15, 2009 | IBM ThinkPad T22 2647 Notebook

2 Answers

Starting ibm thinkpad


Errors 161 and 163 mean the time and date are not set in the CMOS. This typically means the CMOS backup battery is dead / going dead.

Mar 05, 2009 | IBM ThinkPad T21 Notebook

2 Answers

Starting ibm 600e


Hi there.
Errors 161, 192, 163.
All three of these errors are connected to the back up battery.
To resolve this problem:
1. open memory flap on base of laptop (small philips screwdriver required)
2. find the small connector with 1 black & 1 red wire coming from it.
3. disconnect above connector and gently pull the Red&black wires. The backup battery should just pull out from under the casing.
4. get replacement battery. Either
a. call IBM spares (07900 247 490 in UK) and ask for FRU:
02K6502. UK price is about £8 + £15 delivery + VAT.
b. if comfortable with soldering iron: Carefully open the packaging on the backup battery using a sharp knife.
Remove the solder tags from the battery (these are spot welded so need to be cut/broken off). Buy a new CR2025 battery from any computer shop, jeweler, or camera shop.
Using electrical tape, insulate all round edge of battery
Solder the leads onto the new battery - note polarity. Red wire to +, black wire to -.
Using more insulating tape, wrap battery so that all exposed metal is covered.
5. put new battery into laptop (reverse steps 1-3)
6. start up computer, error 192 has gone, but still shows 161, 163. Select OK.
7. reset date & time, and OK
8. when screen shows 'O / I' restart laptop using on/off switch at side.

Good luck and thanks for using FixYa!!

Mar 05, 2009 | IBM ThinkPad T21 Notebook

1 Answer

IBM ThinkPad 600E 2645 PC


the following data is from the hardware maintenance manual for the thinkpad 600 series and is readily available from http://www.lenovo.com/support


Symptom or error FRU or action, in
sequence
161
Dead battery.
1. Go to “Checking the
backup battery” on
page 12.
2. Backup battery.
3. System board.
163
Time and date were not set.
1. Set time and date.
2. System board.
173
Configuration data was lost.
1. Select OK in the error
screen; then set the
time and date.
2. Backup battery.
3. System board.
192
Fan error.
1. Go to “Testing the
computer” on
page 7.
2. Measure the voltage of
the backup battery. If
the voltage is not
correct, replace the
backup battery.
3. Fan.
4. System board.

Oct 03, 2008 | IBM ThinkPad 600E 2645 Notebook

1 Answer

Ibm thinkpad laptop wont start


The BIOS/CMOS backup battery is probably due for replacement; that system has a few years on it and the coin cells are good for maybe 5 years.

If you don't have your original user guide, you can get the maintenance manual here:

http://www-307.ibm.com/pc/support/site.wss/MIGR-4PER6R.html

It will contain battery replacement info.

Aug 19, 2008 | IBM ThinkPad A21m 2628 Notebook

1 Answer

Error


I do not think you fixed the CMOS battery - (backup battery = CMOS battery) According to the error codes, you have a dead backup battery and the time is not set. Makes sense? 161
(Dead battery.) 1. Go to Checking the Backup Battery
2. Backup battery.
3. System board.
163
(Time and date were not set.) 1. Set time and date.
2. System board.

hope this will help.

Jun 06, 2008 | IBM ThinkPad 380ED

1 Answer

BIOS/RTC/CMOS backup battery


Please tell us the type / part number of the battery and where you are located. It's a big world out there!

Aug 20, 2007 | IBM ThinkPad 390x Notebook

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