Rapid Sctivation of the "aging" of the Notebook Battery

The Apple A1189 battery in use after a period of time will be "aging". Specific expression of the resistance, when both ends of the charging voltage rises faster, so it is easy to be charging control circuit is judged to have full capacity of nature is "down". The relatively large battery internal resistance, discharge voltage drop, the speed, the system is easily mistaken for a voltage is not enough, the lack of electricity (in fact, there is no electrical discharge). Can be seen from the above description of the process of aging of the battery is a vicious circle, found faster battery working time off when they should exercise it, otherwise, sooner or later, will be finished.
In addition, many lithium battery failure is failure resulted in a power-saving core of the battery bag, a bad mouse droppings a pot of soup. This phenomenon can not be avoided, because the the battery per core power-saving nature can not be completely consistent with a long time there are some slightly lower quality of the first aging, the destruction of the whole (series after) the discharge curve. And simple say is that section of bad batteries before charging full discharge but first had finished, and this time the capacity of the Apple A1175 battery are not being fully utilized.

Battery charge and discharge
The first constant current lithium-ion Apple 1322 battery charging, fast charging, the voltage reaches a certain value and then to constant voltage trickle charging. Laptops usually are not strictly constant-current charge monitoring device. Large load on the system when the charging current is small, whereas the large, the current from the AC power adapter power margin. Obviously, the system will charge the battery and other components, such as CPU, hard drive, LCD and other competing energy sources. I tried to run side Superπ, while charging the way, found that the charge current varies between 0.70 ~ 1.70A, can not meet the requirements of the charging of the lithium-ion battery, so I worry about this kind of work, rechargeable batteries has been damaged. Do not operate the IBM statement on the request of the laptop charging is probably the reason.
When you start charging, if we can select the charge mode, do not select the fast charge mode (Express charge mode) to avoid premature battery "full". There is battery power is low, the highest performance, prohibiting the use of the CPU in order to reduce competition for power. Laptop CPU supports SpeedStep technology, it is best to install the drivers (responsible vendors will be installed) to facilitate the adjustment performance. SpeedStep program icon is a blue flag, right-click on it to performance tuning options. Windows XP system, SpeedStep program will be problems, this time to rely on to adjust the program to modify the BIOS parameters or some brand dedicated software tools such as IBM laptop is very powerful.
On the the lithium discharge or always-on, let the natural discharge better. It is best not to use physical methods (string resistors and the like). Not to say that this is not the only risk is relatively large, the internal protection circuit did not work, the entire Apple A1185 battery void the worst possible battery explosion, of course, this is unlikely. Circuit hidden danger is not possible, some of the big manufacturers have discovered the potential risk factors in the design and recycled through battery As for the mobile phone battery explosion is not heard.
Small knowledge: In general, the Apple A1281 battery protection circuit parts are usually the voltage regulator block, control chip, insurance, and temperature probe. Temperature protection is usually a one-time internal fuse (some 130 ℃ fuse), used to monitor the voltage regulator block work. If the charging and discharging process, and immediately there will be a current temperature protection, the fuse blows, the battery inside the circuit for the off state, and unrecoverable. If you want to fix the only replacement temperature protection, but these shall only be such as temperature protection is difficult to find in the market.
Discharge is to try small current discharge, operation and let the CPU spin down hard stall, screen tone is dark (or close off), and then do not run any programs until the laptop automatically shut down. The emphasis on low current discharge is to prevent the laptop premature detect the battery voltage is low.