Learn the details about laptop battery

Use rechargeable batteries for laptops, one of the advantages of the desktop, it can greatly facilitate a variety of environments using laptops. Introduced the first VGP-BPS2 VGP-BPS2A battery is nickel cadmium batteries (NiCd) battery but has a “memory effect”, each charge is required before the evacuation, very easy to use, and soon found himself nickel-metal hydride battery (NiMH ) replaced, NiMH not only failed to “memory effect”, but can do more per unit weight of 10% of electricity. The battery most commonly used is lithium-ion battery (Li-Ion), it is also ineffective “memory, compared to NiMH per unit of weight gain more power, the price two times higher than the NiMH . In the same weight, these three kinds battery is 1:1.2:1.9 ratios.

Notebook batteries currently used in three main categories: 1. Nickel-chromium batteries, 2. Ni-MH battery, 3. Lithium, they are generally expressed as: Ni-Cd Ni-Cd, Ni-MH Ni-MH, lithium-ion battery LI.

The purchase or replace the battery when the laptop for many users, “battery” may be unfamiliar. At the outset, batteries and batteries are two concepts. A battery is composed of several slightly bigger than your thumb, cylindrical, up to about 7.8 cm, the voltage is 3.6V small units, a professional name that is called 18650, Sanyo and Samsung is the first manufacturer in China. Batteries as a small GK479 U4873 battery, thanks to the combination series, that is, we see that the battery a. Then talk about how to judge the battery are several nuclei:

One way: Disconnect the battery for the number of contacts to see, there are a few tens of cores. But it is a “minister” approach. Let’s take a look at “Cao Chong” is how, “said the elephant”: the look of your battery nominal number of v, such that 14.4v, then divided by 3.6 to 4, then turned out to be four batteries together in series. And then take a look at the capacity of the battery pack, for example 4400mAh, then prove that the two aforementioned sets of batteries in series, because the battery capacity is low for 2000 — 2200mAh or more, and together the two groups can be achieved must be 4400mAh. In both cases, the battery is 4 × 2 = 8 cores.

The composition of laptop battery

Notebook battery from the shells, printed circuit boards and batteries belonging lithium ion battery. People talk about batteries in general refers to the number of batteries in the battery mAh refers to the ability of the laptop battery.

Mainly by the protection circuit (or the secondary circuit protection), and the capacity of the circuits in two parts, the laptop PP2182D PP2182L battery charge and discharge management and safety.

Time Laptop Battery standby mainly by the value mAh decide. Under normal circumstances, a little more battery, the mAh value is greater than longest standby time. Battery life for notebook mainly by the charge and discharge times to measure the quality of the products is generally eligible to 500-600 times. Therefore, efficient use of laptop batteries within two years expired the battery is aging, standby affect the strong decrease of the mobility of laptops.

Abstract:

Most laptops today use lithium batteries, in which over 13 inch notebooks, especially over high capacity 6-cell battery, while the 13-pad of thumb to ensure portability, many products have chosen the 3-pin thin around the battery. To get the most A1185 A1045 battery life of portable, many manufacturers have started to develop fuel cells, I believe that sooner or later we can see the production version of the fuel cell, then you really can-office Portable weather.

Total Station Battery Maintenance Experience

The batteries used in today’s total stations are generally two types: the special lithium battery and Ni-MH rechargeable batteries commonly used. Dedicated lithium-ion battery, lightweight, high capacity, environmental protection, virtually no “memory effect”, but the price is expensive, generic poor. Ni-MH VGP-BPS2 VGP-BPS2A battery is a high capacity battery discharge power of great depth, resistance to overcharge and over discharge, charging time is short and so obvious benefits. The most important is the nickel-metal hydride batteries are inexpensive and versatile.

No matter what type of battery, as the sale with the total station, generally, there will be training in the use of attention, some companies will even print a separate report on guidelines for the use of batteries and chargers. These instructions are some of the most basic but also very necessary to track maintenance as a method of recharging the battery should be selected, time to load. Unfortunately, many users of these instructions are often ignored or shelved. Recommendation: take a little time to read these guidelines, is absolutely necessary.

Users typically replace the PA3285U-3BRS PA3383U-1BRS battery, will acquire the habit of putting the battery in the way, wherever the place is clean and moist. The consequence is that the battery they get dirty easily, easy to contact metal (such as keys), etc. contact, easy to moisture, and it is the enemy of batteries. Recommendation: To avoid problems such as loss of electricity to keep the battery contacts clean and, if necessary, use a soft, clean and dry pasture.

A long time when you are not using total station, you must remove the battery from the machine and stored in a dry, cool environment. We all no objection to this point, but why here to make room for discussion? Because this relates to another question: For the Ni-MH F2024A F2024B battery, the battery must be completely discharged, then save, store, or online? Its two kinds of different views of what should be used? Many people think that we should adopt the first, but I thought that to save the battery charge is reasonable. Because: According to tests, Ni-MH battery to save the best conditions to save about 80% charged. Because the nickel-metal hydride batteries self-discharge high (10-15% a month or two), if the battery is completely discharged, then save it for a long time not to use, self Battery-discharge phenomenon will excessive battery discharge will damage the battery. You think of buying a new nickel-metal hydride rechargeable battery is not all there is electricity, which is the reason.

9 unique skills to save battery power on Win7 notebook

Microsoft recently announced a report entitled “Power Management win7″ the 14-page document white, describes the technology of power management, Windows 7 is the way to reduce power consumption. Windows 7 If you want to know how power and the White Paper will give you the answer. If you just want to look simple and fast, the following will tell you that the primary means of saving 6Y270 Windows 7.

1. Idle power consumption of resources

When a computer starts up, not always running at full capacity, there is a lot of downtime, downtime, energy consumption has become an important technology for energy management. The win7, the idle power consumption is effectively improved when a certain period of time the material does not enter into a state of low power has reached the goal of power. Including the CPU, hard drives, memory and network elements have adopted this technology. For example, a full power operation of the CPU power 35W power consumption during idle time is almost 0, only one will be able to save much power.

2. with the trigger to start the service

System services are generally a time when the system starts at the beginning, and then resides in the background awaiting F2024A appeal. In Windows 7, the part of the service system can not be started until a few triggered by events such as the insertion of a device or change the IP address. This can reduce the lengthy process context where the number of services.

3. Improved power management processor

win7 Village incorporates the latest technology in power management that allows Windows 7 in terms of conditions of the current load and performance requirements to dynamically adjust processor performance.

4. Adaptive adjusting screen brightness

Microsoft said that, usually 10-15 minutes time if no operation, the screen turns off automatically. But in practice, it will be more short-term use of non-operating conditions for improved energy efficiency, technology will reduce the brightness of the screen. In addition, he can enjoy a number of sensor devices to adjust the VGP-BPS2 brightness according to ambient brightness display.

5. Low-Power Audio

Win7 support for low-power Intel HD Audio specification, it allows the codec to enter a low power state. Win7 also supports the selective suspension technology, is in idle state device is turned off, such as microphones and cameras of this type of USB devices.

6. Integration Timer

The current CPU instruction address space by the use of free time to saving energy use, but most energy saving technologies require a certain period of idle time for the energy effect of economy. And this technology by making the Windows kernel at the moment and focus on the termination of the original dispersed multiple timers are eliminated in a short period of time, increasing the downtime of the processor.

In addition, when using the laptop battery cases, win7 would reduce the activities of non-critical frequency processes background.

7. Bluetooth devices to improve energy

When win7 detected Bluetooth devices in a state of low power, as they were temporarily closed, ie “selective suspend.”

8. Network equipment to improve energy

win7 in the radio network controller to compatibility mode for low power has been strengthened, and only in the wireless AP devices support low-power mode where only the opening. Vista, because it could not detect in advance whether to support low-power mode, will lead to a sudden interruption of the wireless network connection. Win7 will prevent this from happening, before entering the low power mode will first be tested as to whether the mode of the wireless PA3191U-3BRS AP.

9. Typical applications of the optimization program

In addition to the improvements listed above, Microsoft has also turned to specific applications, including search, browse without networking and small game. Here is optimized DVD playback program Part of the occasion:

Without affecting playback performance, according to the principle of maintaining the low power mode so that CPU

By changing the structure to improve manager’s office window and consumption of the GPU

Data caching can intelligently reduce the driving speed

These are the win7 in power management, 9 significant improvements compared to the previous system can save more energy. In addition to these improvements, professionals can also be diagnosed with the management of energy research in May that affects the A1008 efficiency of the problem.