MacBook Pro 15 inch

Correctly view the iPod battery status, charging for the iPod

Posted by admin on December 28, 2009
battery knowledge / No Comments

Focus: If the computer or laptop into standby, hibernation or sleep mode, then the iPod will stop charging. To recharge your iPod, set it directly connected to the USB port on the computer, and ensure the closure of standby, hibernation or sleep mode.

Note: If you use a laptop, will ensure that the power supply connected, and keep the lid or display is open. If the lid is closed, then the computer may enter standby, hibernation or sleep mode, so the iPod LCBTP03003 can not be properly loaded.

 

Tip: If you have an Apple iPod USB Power Adapter, then you can not open the computer case power supply to charge your iPod.

 

 Improper conduct charge

 

In some cases, some may look like the iPod does not load in the load, while in practice. Or, you may think that your iPod in the charge actually did not pay:

 

If you use Windows 2000, then after syncing the iPod that it may stop charging. Please refer to document 304801 “iPod: The correct charge for Windows 2000 process steps to ensure the iPod to maintain the load.

 

If the computer or laptop in standby mode, then the iPod will stop charging. Please disable sleep mode and ensure that the laptop connected to food.

 

When you use the USB 2.0 hub for connecting iPod nano to the computer, the charging indicator power may show a slower pace. It is an illusion does not mean that the rate of charge iPod nano is in decline.

 

If the iPod nano, fifth-generation iPod or iPod mini (Second Generation) apple A1060 battery completely without electricity, then the charging icon will no longer display the animation, you may wait 10 minutes, the computer can recognize. Click here for additional information.

 

When you launch iTunes from the iPod nano and keep it with the port USB 2.0 connection, in the process of charging the battery indicator at the top of the screen may not display animation. If you see the indicator on the battery with lightning, then the iPod nano is charging instructions.

Charge for your iPod

 

You can connect the iPod to the Apple iPod power adapter, or connect to a computer port high-power USB or FireWire port for your iPod battery.

 

Power Adapter

 

If you use the Apple iPod Power Adapter, then please use your iPod with a USB or FireWire cable to connect your iPod to the adapter. Then, insert the adapter into the outlet to work. Adapter can be purchased at the Apple Store.

 

Computer

 

If you want to use your computer to charge your iPod, then verify that the computer is open, not in sleep mode (please refer to the computer’s operating manual to learn how to disable the standby mode) and make sure you connect the iPod to the USB or FireWire port available electricity. If you use a USB adapter, so please use your iPod with the USB cable (or Apple-branded cable) to connect the iPod to a high power port. High power USB port is usually provided by the computer itself, rather than the keyboard provided on the keyboard USB port is a little energy.

 

Note: If you use a laptop, then please ensure that the plug on power, and to ensure that the lid or display is opened, because the lid closed May cause the computer to sleep , hibernation or sleep mode, allowing iPod can be charged.

 

All Macs and some PCs FireWire port is to provide electric power. If you only have 4-pin FireWire port, and may not be able to provide electricity. If you use a FireWire port, then please use your iPod with a FireWire cable (or Apple-branded cable) to connect the iPod to the FireWire port on the computer.

 

Once connected, your iPod apple M8403 battery can be responsible for approximately 1 hour in 80% of the electricity consumption of about 4 hours at full load (charging time may vary depending on machine model to vary – dependent the iPod nano to 80% of the electricity needs of 1.5 hours, fully charged Zexu about 3 hours, fifth generation iPod charging to 80% of the electricity needs of two hours, fully charged Zexu about 4 hours) . Until the battery is fully charged, you can disconnect the connection to use an iPod, you do not have to wait until the battery is fully discharged before recharging. This is because the lithium-ion batteries like the iPod does not come with rechargeable nickel as well as memory function.

 

Stop after the battery is fully charged, so if you do not have to worry all night to power (power is still attached iPod does not keep its costs). Once the battery is fully charged (the battery icon stops animation), please disconnect the iPod connection. If you use a computer to recharge the iPod, then please ensure that the correct charge is complete, disconnect iPod connection.

 

More information to charge the battery, please refer to the “iPod User’s Guide.” To learn more about iPod batteries for more information, please consult the relevant contents of the iPod Battery FAQ.

 

How can I see the battery status?

 

upper right corner of the iPod screen will display a battery icon to show the approximate remaining power. If the process of charging the iPod in sleep mode, then the center of the screen will display the same icons wide. Click here to learn how to display the battery power of iPod shuffle.

 

Use iPod Dock

 

iPod nano, Fifth Generation iPod, iPod photo, iPod (dock connector), iPod (Click Wheel), color screen iPod mini and the iPod can be found in his VGP-BPS13B/B cell on the charge, provided meet the above conditions can be loaded by a computer. Make sure iPod Dock connected to your computer with a high-power USB or FireWire port, or connect to the iPod adapter.

 

IPod charging in foreign countries to issue

 

If you live abroad, the situation is the cause? Abroad, you can do to recharge your iPod? Absolutely. Apple iPod Power Adapter for power in the world using a common standard. To avoid trouble, please consider buying World Travel Adapter Kit, you can ensure that in the case of a variety of holds, you have the appropriate plugin. The tool also applies to most of the iBook and PowerBook G4 AC Adapter.

 

Warranty Information

 

If your iPod has been more than Apple years limited warranty or the AppleCare Protection Plan for iPod, then you need to protect external program of replacement apple MacBook Pro 15 inch battery to pay for a replacement battery. Please refer to Program Replacement iPod Battery for more information.

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Battery sulfur causes

Posted by admin on December 11, 2009
battery knowledge / No Comments

The main form of cellular damage to the battery plate sulfation irreversible. The basic characteristics of the battery when the Laptop battery has a capacity for a long period of minimum needs, the board very crystals of lead sulfate will merge, eventually leading to plaque vulcanization. Under the conditions of the current base station, resulting in the direct cause of vulcanization There are several.

 

1.1 Load floating down

 

There are many base stations, maintenance personnel were not according to specifications, according to the manufacturer requested that the float voltage set to 52.7V, an average of 2.20V / month. In this charging voltage, due to valve battery back-EMF above 2.19V / a, once the landfill, although there “was sufficient” link, but with a float voltage of 0.01V efficient pricing, loss of capacity is not possible to load circuit was added. Many people believe that float voltage difference of less than 1V there are no major effect on the capacity, should distinguish between the table of voltage command displays the name of the closet Um charging voltage, the actual output of the IBM ThinkPad R51 battery voltage Us, and effective charge difference of tension between the three Uy a basic concept. EMF-based batteries Uf is the relationship between these parameters are:

Uy = Us-UF

 

For example, the voltage meter shows 54V Um, the whole battery of practices we are 53V, the battery back-EMF is Uf is 51.6V, the charging voltage of the battery Uy effective 53-51.6 = 1.4V.

 

Only a review of this concept, it means May float voltage below 1V small fluctuations, it will keep the battery capacity of the underlying causes of the considerable influence.

 

From Figure 1 we can see the curve of charging batteries, 500Ah battery discharge after the float voltage of 2.23V, the capacity can be quickly restored to 66%. Under the conditions of the float in the 2.29V, the corresponding value is 75%. This means that the discharge of the battery capacity fully restored need many days to complete.

 

Having a base station, the battery installed in the exchange, after a power failure after the time power is independent of 8 hours, 2nd time was 6 hours, 3rd is 4 o’clock. The share of users is the result of poor quality batteries. Instead, this example illustrates the lack thereof will result in a Dell Inspiron 1525 battery to retain the capacity reduction in the structural capacity of the battery can not charge and discharge cycles three times, but fell by 50%.

 

The base station is valid for the charging voltage is 1.4V. The voltage drop of 0.4V, the charging effects will be reduced by 30%.

 

Table 1.2 shows the high voltage.

 

Control cabinet table shows the high voltage is often the case, defenders under the control panel of this table shows the value of the adjustable float voltage, if the spectacle of high K, the battery must be the real float charging voltage on low K Check the ark of the digital voltmeter belonging to measuring devices, measurement tools, management must be calibrated on a regular basis. Talking about here is the tension “and the actual display calibration voltage,” not now remotely operate a float level adjustment of tension. “This work is now maintenance procedures did not apply. Many technical staff do not even know these two are totally different concepts of technical content. Ark of the control voltage show that is to pass the total hp 346970-001 battery voltage analog circuit is converted to 5V below the weakening of the signal to be the computer to recognize. The process of converting analog circuit produce attenuation bias, this part of the detour is necessary calibration and eliminated. Therefore, we use a multimeter require regular calibration and maintenance of technical standards is now no maintenance requirements in this regard is the need to introduce additional criteria for the content. 240 base stations in the survey itself, a control panel of display bias voltage to 0.9V.

 

1.3 to adapt to low voltage.

 

Some manufacturers of batteries, the battery is stated on the box, the battery charge voltage of 2.20V to work, “which is to deceive the user. Some staff management in accordance with the “factory requirements, the base station float voltage regulated to this value, resulting in a wide range of batteries are ensuring that there is state capacity. Manufacturers of batteries such a provision is to protect the interests of the factory battery in the float low voltage conditions, water loss from the battery to the less positive grid corrosion is small, the battery will be prolonged. Manufacturers Battery can not bear to maintain capacity due to low, resulting in “off station” ’s liability, but does not engage in the state of the VGP-BPS13 battery is charging less than the liability for damage caused by polymerization.

 

1.4 behind the battery backup for high EMF

 

The batteries in series, if one behind the battery, battery back-EMF is increased, the average voltage of 2.23V battery pack, can sometimes be detected by a single voltage of 2.60V. In this state, the control panel in the computer detects the charging voltage was increased, yet there is no battery to a predetermined capacity, they have been wrongly identified as “a been filled to a predetermined value, put the load current, leading to charge less than the actual state of operation of the battery, it happens often. A number of base stations, the two batteries in parallel. In parallel, under conditions of use, the cost of current distribution imbalance occurs, such harm is a way of accelerating development.

 

1.5 After dehydration against electrolyte, the electric potential and the increased density of condensed

 

The toshiba PA3421U-1BRS battery is losing the use of water, but do not reduce sulfate density of the electrolyte to increase the battery back-EMF Uf upward, battery back-EMF and density dependence of the relationship between the value of d is:

 

Uf = 0.85 + d

 

EMF is a direct consequence of the increase in real decline charging voltage. The end result is charging enough. In the float conditions, the battery must be a true no-load back-EMF voltage and current-voltage and polarization. Bias voltage and intensity are directly related.

 

Battery water loss is inevitable, the higher the temperature, the rapid loss of water. Commonly called “temperature of 10 , the life expectancy reduced by half,” the law, the actual increase was mainly due to the temperature of the water caused by acceleration lost; temperature increase caused by the Corrosion is secondary. In Luoyang recharge the battery of 30 base stations, the statistical average for each refill 500Ah batteries 800mL, reaching the level of the plant. The calculation shows that compensation of overtime before the electrolyte density, condensed from 1.30 to 1.37g / cm 3, and anti-electric potential to rise to 2.22V. In fact, do not measure such a high electromotive force is due to some of sulfuric acid has been converted into lead sulfate consumed. In the charging voltage of 2.20V, so that apple MacBook Pro 15 inch battery power can be added. Pay on time, not only to protect the battery to run quality, but the real life of the battery in the south of the original 2-year to five years or more, if not rapidly lost battery of additional water, will result in damage to many non-use.

 

Lead-acid batteries discharge, the positive and negative electrodes on the active substances are converted into lead sulfate PbSO 4, but delays of sulfuric acid micro structure is loose, was cavernous. Then the plates are still in the high energy potential, if the residence time is longer, most would approach the board of crystals of lead sulfate of high potential energy state to a state of low potential energy. At the microeconomic level, is to head PbSO4 Re sulfate crystallization of the initial loose on the left into the right shape to phase plate when the batteries are vulcanized on the state, and indicate the process illustrated in Figure 2. This damage has occurred in the negative, the burden of positive plates produced when the oxygen atom has the ability to PbSO4 in PbO2 lead sulfate, it will not heal the injuries of the positive plate.

 

Not difficult to understand, the batteries have a longer time on the minimum requirements of state capacity of lead sulfate on the substrate are more cellular damage occurs sulphide. Float electrician normal conditions, batteries will not sulfide.

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