digital life
Posts tagged Dell Studio 1555 battery
Focus: Batteries – the rapid death
Jan 19th
The manufacturer of mobile devices promise a battery life of up to eight hours with notebooks, cell phones with more than ten days and a lifespan of about three years. In general, the cells provide energy but after half a year less dramatic or even unusable.
In the mobile business use laptops, PDAs and cell phones are indispensable helpers. You should go to work long and reliable service. Therefore, the decisive criterion for buying such a device, the Dell Inspiron 1520 battery time. Manufacturers shall not mince words and outdo each other with a running time information.
After the acquisition of a mobile device may be the buyer with the running time of the battery still satisfied. But after a few months, followed by disillusionment – the full-bodied propagated term of the manufacturer is no longer approximated. The help-seeking handle for manual turns out to be generally unsuccessful. In the User Manual takes the user only rudimentary care instructions for the Dell Inspiron 1545 battery, often followed by a terse note: “the battery life remains after full load remains low, the battery has reached the end of its life and should be replaced.” Additionally, discloses a further look into the warranty that the battery is excluded after six or twelve months from the guarantee. The subsequent transition to the dealer pulls depending on battery type a big hole in your wallet.
The question is rightly irritated users, whether the good reputation of the lithium-ion Dell Inspiron 1564 Battery is justified. The producers talk about the lithium-ion battery has a lifespan of more than three years. In addition to the energy supplier to withstand well over 500 charge cycles without damage. We explain what the manufacturers conceal and what the user must pay for lithium-ion batteries.
Cycles / life in theory and practice
Nearly all lithium-ion Dell Vostro 1500 battery manufacturers say their energy-promoting a lifetime of about 500 to 800 charging and discharging cycles to. Some notebook manufacturers such as Fujitsu Siemens are slightly more conservative and give about 300 cycles of “proper care”, while others conceal the statement completely – and not without intention.
The achievement of the nominal load cycles is dependent on many factors. The most important parameters are the discharge current or the electrical load and temperature. Under ideal conditions, ie at 20 degrees Celsius ambient temperature and a load of 1 / 5 of rated current (0.2 C), more than 500, the battery charging and discharging cycles to reach the battery capacity limit of 80 percent. If you change the exposure value on a C, so the Dell Inspiron 1720 battery is only about half the number of loading cycles.
In addition, the difference between the nominal battery capacity is greater, the higher the battery is charged. Ideally, therefore, a lithium-ion battery that can be loaded in the notebook, mobile phone or PDA, with 20 percent of the rated current to achieve the optimal performance in terms of the charge and discharge cycles. For example, a DELL Studio 1555 battery with a capacity of 4320 mA / hr (11.1 volts), ideally operated at 864 mA load current. In reality, the notebook this value (0.2 C) is achieved only with extremely preferred power-saving options – if at all. Under maximum operating conditions such as a high utilization of CPU, graphics, display and hard disk are electrical loads up to rated current specification (1 C). Thus while the operating temperature of the battery increases dramatically, which further accelerate the aging process and the performance deterioration of the lithium-ion cell.
Temperature Effects
The temperature of the DELL Latitude D620 battery cell during the discharge process has a serious influence on the achievable overall battery capacity. The lithium-ion batteries tolerate neither too high nor too low temperatures. The ideal “working temperature” is, according to the battery manufacturers between 20 and 40 degrees Celsius. Even at an ambient temperature of 60 degrees centigrade, the energy source is only about 95 percent of their total capacity. The same is true for low temperatures. Thus, a lithium-ion battery provides at a temperature of zero degrees Celsius, only about 90 percent of the nominal power.
In practice these numbers mean that the DELL Latitude D630 battery work at normal ambient temperature at the most effective and longest. However, such ideal conditions are almost never reached. In general, the individual battery cells are housed in an enclosure with a corresponding control electronics. This battery pack sits mostly inside the notebook. Through the “Working discharge” the battery and the heat generated by the other components in the laptop like processor, graphics chip, chipset, hard disk, and voltage regulator can heat up the battery cells to temperatures exceeding 50 degrees Celsius. In addition, inadequate ventilation increases the “hotspots” on the underside of the notebook on the internal temperatures in the device. Thus, even at “normal” operation of the notebook full capacity due to excessive thermal load on the DELL XPS M1530 battery elements never used. With cell phones and PDAs, the burden of high operating temperatures usually is not given. In these devices, a storage location with strong sunlight affects adversely as on a desk or in a car, the electrical properties.
How to repair laptop power cords
Jan 17th
Should your notebook is dead and you do not understand why, because it is plugged in, the first thing is to find the status LEDs. The transformer brick or power adapter Dell usually has a status LED to show them that it works well and into an outlet. If the Dell Inspiron 1520 AC Adapter LED is not lit and the cable is firmly in both the transformer and then plug the AC sits the battery is probably bad. But problem solving most problems with the Dell Inspiron 1521 AC Adapter takes a little more effort. Fortunately, it is also for the failure to spread the power cord itself, because I have some Toshiba models noted. Many HP and Compaq models use “L” connectors, which are less susceptible to interference, and Sony and Dell cords seem durable as well, but there is always a possibility. It seems to me that I had “L” connectors on IBM Thinkpads have seen.
If the status lights flash on the laptop when you wiggle the power cord or if they are on, if you position the cable to be held just right, is the failure to either the cord or the plug into the notebook. Of the two, that the problem on the power cord because it is much easier to fix. A power cord may look perfectly fine (see above), but broken inside, usually as a result, they dangle from the back of the notebook, if you work on your lap. The length of the cable from the Dell Studio 1737 AC Adapter is shielded coaxial cable to the laptop, connected to the inner conductor to the inner part of the barrel plug and the outer part serves as a floor. The actual power cord is often inextricably linked with the battery and is unlikely to fail, as long as he’s sitting.
Many cable networks, a large inductor, probably a ferrite, which I assume back to RF interference generated by the notebook from leaking onto the cord and turning the length between the notebook and the Dell Inspiron 6400 battery to prevent an antenna. Frankly, I cut it off for repair, if they are close to the flow connection. It’s nice to have a proper wire stripper, so you can strip the coax in a shot away instead of the jacket with a cheap tool. You want to take off about an inch from the outer shell and then turn up the braided shield. Some technicians like, the braid with solder before tacking it to the power port bias, but if there is a tab you can order the first is not really necessary to wrap.
I prefer to buy new connections, than trying to reuse the original for several reasons. First, the original Dell Studio 1558 AC Adapter have a molded housing for the connector, and the only way to get it off is to hack away a little at a time with a razor. I’ve done it and causes a repair when I was traveling and had no other choice, but the braided wire on my Toshiba laptop was directly soldered to the outside of the barrel, instead of their own junction, as a replacement connector. It is also very difficult, factory connectors without melting the insulator, if you have a hot, fine tip soldering iron. I my spare connectors at Radio Shack for a dollar or so, bring the original for the dimensioning. The inner and outer diameter have an exact match, so you may want to even bring your laptop into the business.
If you are still connected to the cable length on the DELL Studio 1555 battery (transformer), make sure you push the tray for the new port on the line and given the right way before you solder the connector. Otherwise you are doing with it all or just belting the hell are confronted from the socket. The length of the barrel connector fits into the notebook body is somewhat flexible, can work for too long, too short and you may be able to get a little back on the plug housing. On the left you see the inner (yellow) of the notebook power cable soldered to the center of the barrel conector soldered tab, and the braid to the outer tab. If you are a shrink gun and hose you do make a much neater job than I am here 
Of course you do not want to touch the two tabs or they can just shorts out, so you have a little tape around one of the tabs, if you’re paranoid, but leave room for the bowl to get. The shell is actually threaded, as the plugs, so they usually stick together pretty well. Since this particular failure was me so much grief for the first time it happened, I always travel with a spare-end replacement for my laptop power cord. During my first exchange will hold still, it should fail, I can only undo the splice and tape replacement end up in a matter of minutes. It is unfortunate that so many people buy a new Dell Inspiron 1545 AC Adapter, or even crack open their laptops and fools with the inside of intake if the problem only to connect the power cord.
Conclusion:The proper care and affordable alternatives to original battery
Jan 14th
The majority of mobile devices working with lithium-ion batteries. This chemical energy donors have under defined environmental conditions and with appropriate use of a particular life-course and duration. If these are not adhered to shorten, these values ??significantly. Thus the user can even decisively influence the DELL XPS M1530 battery life-and longevity and delay an expensive battery purchase.
The most important criterion for in-use lithium-ion batteries at an ambient temperature is 20 to 40 degrees Celsius less than ideal. If this is not clear, appropriate cooling measures provide for heat dissipation. Even extreme temperatures below freezing should be avoided by the user.
If, for example notebooks over a longer period not in operation or in a docking station, the user should remove the Dell Inspiron 1545 battery from the device and stored in a cool dry environment. This minimizes the self-discharge and the chemical decomposition process of the battery cell. In this regard should also be frequent, avoiding unnecessary charging and discharging of the Dell Vostro 1500 battery charging cycles and mini.
Meanwhile, some companies have focused on the distribution of so-called identical replacement batteries and repair of laptop batteries. Depending on battery type, the customer can save a corresponding amount of money here. However, one should consider the offer carefully, because the quality of these DELL Studio 1555 battery is not always recognizable. Especially with old notebooks, for which there are no more spare batteries, may be worth a repair or the preparation of the battery pack. (Hal)
In our forum you will have the opportunity to describe to us your experience with lithium-ion batteries. Let us know your findings in terms of running and life of your Dell Inspiron 640m battery cells. What specific measures do you take to optimize the battery life on your mobile device? Or have you ever tried third party batteries and were you satisfied with this? Criticism and suggestions on the topic of Dell Inspiron 1564 Battery you can post on our forum. In addition, you will find more basic information about the weaknesses of batteries in our report: “Batteries: short-lived factory.”
Tips for dealing with lithium-ion batteries
Jan 13th
The following points provide some assistance, such as lithium-ion batteries should be maintained and stored in order to reach a maximum life and durability:
Lithium-ion batteries, which perform over a longer period, for example, in the notebook should not work, remove the user and stored at about 50 percent of total capacity. The ideal storage temperature of the Dell Vostro 1520 battery is between zero and 20 degrees Celsius – a refrigerator would be a good place for storage. This action delays the self-discharge and the chemical decomposition process. A freezer is not suitable. The temperatures of up to minus 18 degrees Celsius are not optimal for the energy cell.
Depending on the application creates a notebook enormous heat inside the case and thus the Dell Vostro 1500 battery charged. This running and life can be shortened significantly. The user should take care, that the notebook is used by all sides well supplied with cool air. Especially on the underside of a notebook hotspots emerge, which can quickly lead to heat accumulation. In practice, large feet, a notebook stand, or equivalent notebook cooler pad with built-in fans to help reduce the heat inside the case.
The electrical load on the batteries in mobile applications should be kept to a minimum. Helpful as are the energy saving options in notebooks that are tailored to the different applications such as Internet usage, office or workstation can be set for the Dell Inspiron 1545 battery energy-friendly. Unused components and devices such as WLAN, Bluetooth or external USB devices to the notebook users should disable or remove it from the ports.
Due to the limited number of about 300 to 500 charge cycles for lithium-ion batteries in laptops, cell phones and PDAs should the need for constant recharging – if required – avoid. These “mini cycles” for example in a docking station, do not replace a full charge-discharge cycle and influence, but the life of the DELL Inspiron 1300 battery cell is negative. If one such as laptops, two working days per full charge and discharge cycles 10-100 percent of the total capacity to reason, then, the battery 400 charge cycles per year on average 200 working days. This signaled the end of life is almost achieved without the other parameters such as temperature, strain, or “mini cycles” are considered.
To improve the transparency of the life of a Dell Inspiron Mini 9 battery, they should always pay attention to the production date – if available. The newer the battery, the longer the duration or life-energy of the donor. Therefore, it does not help, just mitzukaufen a second DELL Studio 1555 battery to use it then, when the first battery fails.
Laptop battery life and common sense
Aug 11th
Typically, the Friends of the battery of sensitive point of the most direct – life. Calculation of the laptop battery life, there is a formula, namely: the use of battery time = / total-power computers. Typically, the total power consumption directly from the parameter table and Dell Inspiron 1564 AC Adapter you need for the calculation are obtained. Battery operation also need a formula to calculate namely: battery = battery capacity × DC-voltage. These two parameters can remove the battery pack, see the back of the Dell Latitude D610 battery, as shown in Figure 2.
The Medion Battery MAM2070 Compared netbook battery battery capacity of 5200 mAh (5.2 Ah), the DC voltage of 11.1 V, the electrical energy of 5.2 × 11.1 V = 57.72 AH WH. (Note: mAH: to be read as “ma”, commonly referred to as the capacity of the battery unit 1 mA output current, use 1 hours on battery capacity when called 1 mA; WH: read “Wh” is a unit of electrical output of 1 watt of electrical power consumption of 1 watt hour is one) So, to the life of the DELL XPS M1330 battery charge, provided that:. the total power consumption of notebook battery 10W (watts), current 57.7WH, then the use of time = 10W 57.7WH ÷ ≈ 5.8h that 5 hours 48 minutes.
For details of the implementation of laptop batteries, the friends must understand several aspects. Firstly, the formula that we made is the same configuration (nearly) machine, the greater the value of electric power longer battery life to draw. Therefore, the Friends of the terms of mobility as a prerequisite for a notebook to buy, to concentrate in a configuration similar to the overall performance on battery power. Second, the “batteries” of the discussion that Cell. Has the most friends, that the 6-cell Dell Inspiron 6400 battery to be better than four cells with a long time, this visual impression is correct, but if it’s the same for the 6-cell battery with high capacity is the use of some of the time can not be president because only two batteries, the same output voltage, the larger the battery capacity, battery life was longer.
Explained on the books “batteries” in depth here. Notebook battery comes from the batteries, the market can single-core, 3-wire, 4-core and 6-cell Dell Inspiron 1501 battery, of course, see, there are more, for example: can an 8-pin / 9-cell battery for eight hours to keep power, but the mainstream or in 3-pin, 4-pin and 6-cell battery.
Composition of multi-cell battery, especially through series and parallel circuit, series circuit: constant power, voltage sum; parallel: the same voltage, power sum. Details can be found be found in Figure 3. Samsung notebook products, for example by: 3-cell battery, only with ND10, 4 Cell Battery serial structure-based, multi-use previous generation products, such as X11, R20, etc., 6 Cell Battery, the basic 2 and used 3 series structure, the main products of active service.
Use of daily use, some power-saving techniques, you can borrow books for us to prolong life, especially for making some of the great power of “surveillance”, the effect is very significant. Decrease is first, the laptop LCD screen is a great power, you can the brightness of the screen very effectively provide for the reduction in power consumption and longer battery life, does the environment not to dim the brightness higher, we can reduce them accordingly. On the keyboard, adjust the brightness of the screen in most models, a combination of keys for the “Fn + F6/F7″, certain operations are found in random directions.
Secondly, the abolition of the “Screen Saver” you can your Dell Inspiron 1520 battery life. Their seats left, if it is set in the aborted state, the friends of the best screen saver for saving or standby mode, set this to different operating systems, different types, we will detail in the next section. Specific measures to cancel the screen saver: use space on the desk on the right, select “Properties” and select “Screen Saver”, you select directly to “None” can be determined.
Thirdly, a number of commonly used ports or hardware is not a “ban”, you can also save considerable use in portable power supply. Like pulling a similar PC Card, USB, IEEE1394 interface, such as any device or disable the optical drive, WiFi and Bluetooth devices to save power. Disable hardware devices, such as the common drive, as follows: Right click “My Computer”, select “Properties” and select “Device Manager” in the menu to the hardware option in the pop-up menu to find, select “Disable” or the “Uninstall” button. For wireless networks and Bluetooth devices disabled, it is done through keyboard shortcuts, the specific operating models in the context of the manual.
Fourth, reduce time monitoring of system resources, books to bring working conditions, and the reading of this period can be based energy. Through a combination of key “Alt + Ctrl + Del” to the process menu and then the process resources, or run as “Super Rabbit” way of cleaning the system software, repair, to alter the operation of the system, not only energy, but also the most space-saving system sense.
Finally, the proper discharge of the Dell Studio 1555 battery, the battery can be extended properties to achieve the ideal power supply. Most new laptops have a standard lithium-ion battery, this battery without too much of a full charge and discharge operation, but they still have a slight memory effect, which use a laptop or so years has become particularly clear, especially used to power each day to the user. Ideal discharge operation, it should be every two months, leading to a thorough discharge of the battery and remove the cloth and keep it ventilated place. This can maintain the battery life and performance.
Dell Latitude E6400 battery replacement
Feb 16th
Technical communication has to find Gigabit LAN, (IBM Thinkpad T61 battery) Bluetooth and Wi-Fi 802.11n also possible to use an analog V.92
modem. A UMTS module in our test device does not exist and is currently not available (Dell Studio 1535 battery)
As a docking station would be the Lenovo ThinkPad W700 Mini Dock 2.0 (57Y4345, about 190,-Euro) (battery IBM Thinkpad R61) or a USB port
replicator with a digital monitor output (45K1611, about 130, – €) in question (dell studio 1537 battery) Otherwise you will find the well-stocked
retailers and on the less well-stocked manufacturer’s site a lot of additional accessories such as mice, keyboards, bags, hard drives and
batteries, which we compare better before buying but with offers from third parties. (battery hp pavilion dv6000)
oftware technology, the Dell Studio 1555 battery Workstation no unusual Zugaben.Akku Dell Latitude D820, the Lenovo-known helpers
(System Tools) to do the task and user taste your tasks respectable, and are therefore uninstalled rarer than perhaps at many of the competing
model. The operating system is Windows 7 Ultimate 64 bit to use, covering requirements of the target groups well ab.Dell Latitude E6500
Battery
Keyboard
The keypad of the W701 Dell Latitude E6400 battery can take heart from the solid shell size and provides a generous sized entry including
separate numeric keypad. Space for one or another special key, which are otherwise often integrated as a combination FN, Dell XPS M1330
battery, you have just found how to adequately sized keys. Thinkpad beginners, however, have the Lenovo layout make some settling work, since
not all the keys where it is perhaps used to. “Esc” is far above Dell Inspiron 1525 Battery positioned almost outside, “Ctrl” and “FN” are reversed
as usual, “Clear”, collectively, “Page Up” and so on blocks above the F keys. Also one has ever the impression of being overwhelmed by the
plethora of buttons, Dell Inspiron 1501 battery when searching a certain rarely used feature. The label is not running quite as high contrast as in
the competition, Dell Vostro 1400 battery for it can go back in poor ambient light conditions but also on the Think Light keyboard light. (Hp
pavilion dv9000 battery)
Slightly disappointing is not solid, lying keyboard, Dell Vostro 1500 battery which can be on the left side and in the return key press noticeably. A
light bouncing during the review is to determine, especially in the left keypad. The medium length stroke with a good pressure point otherwise
makes a good impression and the Dell Studio XPS 16 battery stroke noise is within the scope of many competing models. A little louder, Dell
Inspiron 1520 battery can almost hear shaky, however, the larger keys such as “Space”, “Return”, “Shift right” and “Backspace” to. This is not
what we usually expect from Thinkpad keyboards and makes this a rather disappointing impression, Dell Studio XPS 13 battery, especially since
it is the test model at least the top tier of Thinkpads with a price of at least 2200, – € is.
Touchpad / Track Point DasDell Inspiron 1721 battery touchpad is advised by the dimensions of her a little small and needs, especially for the
high resolution screen, Dell Vostro 1700 battery often times a new preparation route to the destination. The operation is otherwise successful.
With good lubricating properties, good feel and the touch pad input adoption is good reason for a long time as a mouse. The corresponding
buttons are smooth and quiet to use and take commands similarly well. The good reputation of holding the the track points, can confirm this
model fully. The very precise cursor control, with easy to use buttons, after some settling a very good alternative is the usual touchpad dar.