UNSOLVED
Battery recalibration - Latitude D830
To Dell Guys,
My Dell's battery suddenly started reporting less power, from day to day - Dell Battery Meter and BIOS started telling me about decreased performance.
I know there are utilities to recalibrate internal battery meter, but I can't find anything for D830. Are there tools for that available? I found only following, anything of that may be used for D830? http://ftp1.us.dell.com/diags/R66243.htm#s2
I read about several methods of battery recalibration - the easiest is to drain it to zero, cool and then charge - to the Dell Guys, will that help to recalibrate controlling chip? I know for sure there is something wrong with battery gauge, because while normally battery discharges linearly in time, it stops around 3% and holds 3% of power for at least 30 minutes.
I really welcome any constructive help - I am in a business trip and it will take a while before I get a new battery - this problem is starting to be critical for me.
Peter M.
12 Posts
625
0
Posted January 13th, 2011 09:00
I can see there are Dell tools to do the job, for example AUTOLRN.EXE.
Dell's description:
This utility is used to maintain optimal battery gauge accuracy on the Dell Latitude LS Family and Inspiron 2000 systems. This program will not run on any other notebook models.
The purpose of this program is to allow the battery to learn its true Full Charge Capacity (FCC). The computer uses this value to determine the length of time that it can operate on a single charge. An incorrect FCC value will cause the system to report incorrect remaining battery life to the operating system. This can result in shorter than expected battery life in some situations.
The Battery Auto-Learning Utility should be run if the user suspects the gauge accuracy to be incorrect.
Note: The FCC value can vary to some degree from one battery to another and will generally decrease as the battery goes through multiple charge / discharge cycles.
Please help me there has to be a tool for D830!