Laptop battery charge and discharge method
In use for some time, iBook G4 14 Batteries then go in aging. Concrete expression of the resistance is bigger, at charging time at both ends of voltage rise faster, so it will be easily found for the charge control circuit has been filled, the capacity also is naturally "down". The battery internal resistance due to relatively large, the battery in use after a period of time will be aging. Concrete expression of the resistance is bigger, at charging time at both ends of voltage rise faster, so it will be easily found for the charge control circuit has been filled, the capacity also is naturally "down". Since relatively large C1295 internal resistance, discharge voltage drop large, fast,the system is easy to mistakenly believe that a voltage is not enough, lack of electricity (in fact, there is no electrical discharge). As can be seen from the above description of the battery is a vicious cycle of aging process, the discovery of lost working hours, the battery faster than the time it should keep you at it, otherwise, sooner or later end.
The battery charge and discharge:
Rechargeable lithium-ion Dell inspiron 1721 battery when the first way to fast charge constant current in the voltage reaches a certain value and then to slow charging constant voltage mode. Notebook computers are often not strictly a constant-current charge of monitoring devices. The system load when a large charge current on small, whereas the large, the current from the AC power adapter power margin decision. Clearly, the system will charge the battery and other components, such as CUP, hard drives, LCD and other competing energy sources. I tried to run side Super¦Ð, while charging the way and found that the charge current in the 0.70 ~ 1.70A between the changes, can not meet the lithium-ion BTP-58A1 charging requirements,
So I fear that this will work, rechargeable batteries were defective. IBM statement calling for notebook computers will not operate when the charge is probably the reason.
Charge at boot time, if we can select the charge mode, you do not choose fast charge mode (Express charge mode), to avoid premature HP 530 battery "full." There is a time of low battery power to prohibit the use of CUP's highest performance in order to reduce the power of the competition. If the notebook computer using CUP is to support SpeedStep technology, it is best to install the driver (the vendor will be responsible installed) to facilitate the adjustment performance. SpeedStep program icon is a blue flags, right-click performance tuning options it can occur. Under the Windows XP system, SpeedStep program will be problems.At this time modify the BIOS parameters, or to rely on a number of brand-specific regulation programs, such as IBM 40y6799 computer software is very powerful tool.
Electric-discharge of lithium, or always-on, let the natural discharge better. Is best not to use physical methods (string of resistors in the class). Not to say that that was not feasible, but relatively large risk, if the internal protection circuit was not working, then set aside the batteries, and the worst is probably the Dell inspiron 1721 batteryexplosion, of course, this unlikely. Circuit hidden dangerous is not impossible, a number of big-name manufacturers have found that the design of potential risk factors exist in a battery recall, as mobile phone battery when you do not hear the explosion.
Tip: In general, notebook computer battery protection circuit in the part is usually voltage block, control chip, insurance, and temperature probes. Temperature protection device is usually a one-off, the inside has a fuse (some 130 ¡æ Fuse), is used to monitor the voltage regulator block work. If the charge-discharge process exceptions, immediately there will be a current through the temperature protection device, will fuse fuse, the PA3420U-1BRS's internal circuitry at this time for the open circuit state, and can not be restored. If you want to repair only the replacement of temperature protection device, but such temperature protection device on the market hard to find.
Discharge is the discharge current as small as possible, the operation is to slow down and let CUP, hard to stop transfer, screen transfer the darkest (or close the switch off), then do not run any programs until the laptop automatically shut down. The emphasis on small-current discharge is to prevent premature detection of Compaq Evo N610C Battery shortage.
good post!
Posted by: mynest | 11/09/2009 at 11:56 PM