Use rechargeable battery The use of rechargeable batteries is one of the advantages of laptops versus desktops, which greatly facilitates the use of laptops in a variety of environments. The first battery introduced was a nickel-cadmium battery (NiCd), but this battery has a "memory effect". It must be discharged before each charge, which is inconvenient to use. It was soon replaced by a nickel-hydrogen battery (NiMH), and NiMH not only did not. "Memory effect", and can increase the power per unit weight by 10%. At present, the most commonly used battery is a lithium-ion battery (Li-Ion), which also has no "memory effect". Compared with NiMH, it can get more electricity per unit weight, and the price is twice as high as NiMH. At the same weight, the usage time ratio of these three batteries is 1:1.2:1.9. At present, the batteries used in notebook computers are mainly divided into three types: 1. nickel-chromium batteries, 2. nickel-hydrogen batteries, and 3. lithium batteries; they are generally expressed as: nickel-cadmium NI-CD, nickel-hydrogen NI-MH, lithium-ion LI. When buying or replacing a laptop battery , the "cell" may be unfamiliar to many users. First of all, the statement that the battery and battery are two concepts. A battery consists of several small units that are slightly larger than the thumb, cylindrical, about 7,8 cm high, and have a voltage of 3.6 volts. They are the batteries, just like a small battery, after the series combination, is the battery we see. Then talk about how to judge the battery is a few core: One way: pull the battery to see the number of his contacts, a few are a few cores. However, this is the "minister" approach. Let's take a look at how "Cao Chong" is "called": Take a look at how much your battery is nominally v, such as 14.4v, and then divide by 3.6 to get 4, which proves that 4 batteries are connected in series. Then look at the capacity of the entire battery, such as 3800mAh, it proves that there are two groups of battery packs mentioned above, because those small battery capacity is 1500-2000mAh, or even more, the two groups must reach 3800mAh. According to these two judgments, the battery is 4 x 2 = 8 cores. Composition of laptop battery The notebook battery consists of a case, a circuit board and a battery, and is a lithium-ion battery. Generally speaking, the battery cell refers to the number of cells in the battery, and mAh refers to the capacity of the laptop battery. The circuit board is mainly composed of a protection circuit (or a secondary protection circuit) and a capacity indication circuit, and manages the charging, discharging and security of the notebook battery. The standby time of the laptop battery is mainly determined by the mAh value. In general, the more the number of cells, the larger the mAh value and the longer the standby time. The life of a laptop battery is mainly measured by the number of times of charge and discharge, and the quality of the product is generally 500-600 times. Therefore, the effective life of the notebook battery is less than 2 years, the expired battery will age, and the standby time will drop sharply, which will affect the mobility of the notebook. Laptop battery tips In fact, how to use laptop battery, how to extend its use time and life expectancy is undoubtedly a problem that plagues the majority of laptop users. There are many ways to use laptop batteries, which requires us to Usually use more learning and application. (1) Quickly enter the sleep state When saving the battery power for a while, we can set the power management scheme to make the system go to sleep after a period of time, but this may take a few minutes, long or short, there is no way to make the laptop system Go to sleep now? An easy way to get your laptop system to sleep quickly is to turn off the display directly. Pressing the display is just a little effort, so that the laptop can go to sleep immediately, effectively saving battery energy. When you need to use it again, just turn on the display and the system will automatically return to the state before the operation. (two) screen power saving mode The TFT screen is the most power-consuming component in a notebook computer. In order to reduce the power consumed by the battery when it is used, the notebook computer manufacturers have their own ideas, but generally adopt a method of reducing the brightness of the screen or even turning off the screen. In some laptops' power management settings, you can customize the brightness of the screen. Most laptops can adjust the brightness of the screen through specific shortcut keys. Generally, there are 6-8 levels of brightness adjustment. (3) Carrying out energy saving settings The desktop computer uses AC power, and most people don't pay much attention to the computer's energy-saving features, but for laptops that need to be powered by batteries, the use of energy-saving features should be taken seriously. How computer hardware is designed to be more energy efficient is not a problem that users have to solve. What the user can do is effectively use the power saving option on the computer settings. There are two settings for energy saving settings that need to be adjusted by the user: First, there are settings for the energy saving mode in the BIOS setup program of the computer; the most important is that there are many energy saving settings and operations in the operating system. When the microcomputer system is actually executed, the energy saving settings in the Windows system should take precedence over the settings in the CMOS. 1. Energy saving settings in BIOS In the CMOS settings, there is a big "PowerSavings", which can choose multiple options such as "MaximumBatteryLife" and "MaximumPerformance". “MaximumBatteryLife†is the default power save mode setting. The notebook's power-saving mode has several states, such as IdleMode idle mode, StandbyMode standby (waiting) mode, and SuspendMode suspension (sleep) mode. These settings on the laptop, the ability to adjust the power consumption, mainly after the computer enters the energy-saving state, timely shut down some system equipment that is not needed. When in the waiting state, turn off the display and the hard disk; after entering the hibernation state, in addition to turning off the display and the hard disk, you can also save the contents of the memory to the hard disk, and the entire computer system is basically closed, once the computer is activated or restarted, the desktop Will be accurately restored to the state before hibernation. The energy saving setting in CMOS is mainly to set the time of entering StandbyTimeout of StandbyMode from IdleMode, and setting the time of SuspendTimeout of SuspendMode from StandbyMode. Most laptops use PhoenixBIOS. Different BIOS power saving settings may be different, you should read the on-screen prompts carefully. 2. Energy-saving settings in Windows For the average user, the energy-saving management in the Windows system may make the operation simpler and simpler. In the Windows help file, under the "Manage Hardware and Software" entry, there are two items related to notebook power saving: "Managing Power Consumption" and "Managing Power on Laptops" in "Using Portable Devices." Read these before you can make Windows energy saving settings. In the Windows Control Panel, click Power Management to open the Power Management Properties dialog box. In the Power Management Properties dialog box, you should set the Power Usage Scheme to Portable/Laptop and arrange the options such as System Waiting, Turning Off the Monitor, and Turning Off the Hard Disk. There are some differences in the options that can be manipulated by different computers. The new factory and the latest software will have more options. The detailed settings should be based on the computer's own functions and Windows help files. In addition, if your laptop has an infrared port built in, you can also extend the battery life of your laptop by disabling it when you don't need it. (four) alarm settings Set the battery level alarm function to prompt the user to save information. The method is to click to open the "Control Panel", double-click the "Power" option, click the "Alarm" menu bar, the "Battery Low Alarm" column Windows98 defaults to 10%, the "Battery Critical Shortage Alarm" column Windows98 defaults to 3%, according to Appropriate modifications are required. Click the [Alarm Response] button of both to select both "Audio Alarm" and "Display Message", and "Power Level" can be deselected. In this way, when the battery uses the alarm limit, a warning window will automatically pop up, and the buzzer will sound an alarm to prompt the user to save the information in time. Finally, click the [OK] button to exit the power management settings. (5) Opening energy-saving work As we mentioned in the section "Expanding the battery life of laptops", the energy-saving function is a CPU technology that allows the best performance balance between the performance of the notebook and its battery life. Most new models of laptops support the CPU's power-saving technology in the BIOS. By default, it is turned on. If it is not turned on, just enter the BIOS and the support option will be turned on. (6) Using third-party software Monitoring battery usage In addition to the built-in power management features of Windows, there are a number of utilities that monitor battery usage. For example, PowerCenter is a power monitoring tool that can be downloaded for free (http://meMBers.xoom.com/TimothyBug/powercenter/index.htm). Only 800KB is a software designed for laptops. In addition to displaying the percentage of battery, PowerCenter also displays the actual usable time in hours and minutes. PowerCenter has 3 display modes. (1) FullDisplay: Display details in the open window, including battery or AC, percentage of battery remaining, and available time. (2) CompactDisplay: always displayed at the top of the window during use. (3) MinimizeDisplay: Reduces PowerCenter to the Windows taskbar, and the information displayed is relatively simple. PowerCenter also comes with a control center that can make up to 6 warnings. When the battery - drops to a certain level, the user is promptly warned to save the file being processed. In order not to waste power and CPU resources, PowerCenter automatically detects changes in battery status. (7) Deliberate use of photovoltaic cells Use a regular battery to ensure full charging. If you need to fully use the power in the battery, in the PowerManagement dialog box, select the specific power mode BatteryDrain, set all three of the RunningonBatteries options to Never, so that the notebook will continue to run. Select this mode, then go to the Alarms tab and uncheck the check boxes for the LowBattery and CriticalBattery warnings (so that when the battery is low, the machine will not enter the pause state). Next, let the computer run a lot of tasks that take up CPU time, such as the computer automatically running some complicated 3D demo programs, so that you can quickly use up the remaining power in the battery. Of course, don't forget to unplug the AC when doing these treatments. plug. 51-SRP-T1 Probe tips is a part for Hitachi Oxford CMI165 instrument,51-SRP-T1 Cmi165 Tips,Cmi165 Crystal Tips,51-Srp-T1 Tips, CMI165 probe head Welltronics Technology Limited , https://www.welltronics.cn