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I use this method of battery, charge and discharge is now 14 times more than the capacity has remained at 45, and battery design capacity is 43.2, also declined during the time, but this time after the charge and discharge are restored.

Beginning about two points, one appropriate charge and discharge, the second is not to discharge less than to charge less than the following discharge to see how to solve the problem to charge it:DELL INSPIRON 1000 adapter

Insufficient to minimize the discharge of charge or over discharge

In fact, a good solution to excessive discharge, not to terminate the discharge limits set too low on it, I have been using 3%.

Many times a battery may be just a short time, such as battery remaining 70%, if the switch to power, the battery will automatically charge, there is no such a cycle, although battery life is not the absolute number of cycles to be dead, But always it will reduce the battery capacity, lithium-ion battery is said there is no memory effect, but in fact only a relatively low memory effect, nothing more. Unfortunately, IBM does not provide solutions to discharge less charging method, but provides a basis for solving this problem. This is what I found on the R31 may not necessarily suitable for other machines, but the method should also not far off, do not forget after you tried to stick out for all to share.Acer Aspire 3500 adapter 

Solve the problem of small current charge, and now the discharge problem. In fact, this is difficult, after all, the book is used to work, the discharge current will vary with the working state, the method mentioned here is limited battery capacity dedicated to the recovery operation.

Start the machine, set the power management never goes to sleep (standby) and hibernation (hibernate), others are set to the most power-saving modes, including CPU speed, turn off hard disk, turn off the display, etc., while in TP management process Close some unused hardware, such as sound cards, etc, and then open the battery status display window, and let it run in the foreground! ! ! Close other programs, in particular, screen savers and other programs that run regularly! ! Do not use the machine, do not close the lid and let the battery discharge is completed (not to discharge the minimum value set to 0, my set is 3%). Display and hard drive off, the discharge current is about 0.5A, this is my IBM R31 can be achieved on a minimum discharge current, battery discharge to the lowest setting after the machine will automatically shut down. The discharge lasted about 4 hours,Sony VGN-B100B Ac Adapter, depending on your battery capacity may be different in different, this time also used the method to pass in sleep.Acer Aspire 1680 adapter Acer Aspire 3000 adapter 

Well, the last to emphasize that the method is not dead, especially the discharge, there are ten times can be a time to do so, otherwise the battery still doing? All the best with a small charging current charge, of course, use the battery if needed, directly to the power plug in a book on it.