Right guy bit of an issue here, I bought a compatible battery for my thinkpad R52 my old 4 cell 4200mah is still at 53% capacity after 2 and a bit years so okay, but shockly my nine cell 7200mah battery pack which is two weeks old is only in fair condition according to the ibm power manager and wait for it only has 69% if it's capacity only 4400mah roughly it's sanyo cells and the right voltage definately made for my machine at first in the first two days i would get 5:05 out of it now it's dropped to 3:03 or less I don't think it's the battery but the acpi or software that is out of calibration, please help thanks Johnny.

My Systems: iDEQ 200T, P4 3.4Ghz,1GB DDR400 Dual Channel,160GB SATA,19'' W/S LCD Monitor, IBM Thinkpad R52 What a Machine IBM/Lenovo Rule, Acer Travelmate 2305LCI

Sometimes all you need to do to get the battery to be reported as having more capacity with a new battery is to simply charge it longer with the computer off.
Look on the web for tips about what you need to do to get the battery to be reported as having more capacity.
E.g. at places that sell replacement laptop batteries, or that have info about laptops, such as this one:
http://www.laptopbattery.net/
Some laptops have a built in program in the bios Setup or in the programs in Windows that the maker has supplied that will run a routine that will improve the capacity reported.
Or look on the laptop manufacturer's site for tips.

some laptops have a battery cycle option on the bios. have a poke around there. what it does is charges then discharges the battery. it can get old batterys up and running and it also registers its self as having a large battery in it

all text needs typos. There there for the reader to find,to distract them from the total lack of content.
google it! wasnt the answer to the question i asked so dont be dense and give me that repl