dell laptop battery

Some contents from:http://laptopbatteriesinc.blog.hr/

1. Aging

age lithium-polymer batteries, from the moment they leave the manufacturing belt -. no matter whether they are or not (in contrast to five years with the unibody models) after about two to three years, it is the end. Are they still not completely over, but the aging is very noticeable and accelerated.

So it's not a good idea to buy a second Dell Inspiron 6400 battery as a reserve and to lay him on the shelf. Beware also of bargain that may have already seen two summers from shelf! The date of manufacture is stored encrypted in many batteries, but we could not figure out if this is the case at Apple.

The aging process (Oxidation) Slows down in cold storage, as much as for food. The unrealistic Tip to keep its battery at night in the fridge, has its origin here.

2. Charge cycles

Lithium-polymer batteries do have a limited number of charge cycles - even slightly less than lithium-ion batteries (about 300 to 500). In this case both battery types are not yet "evolved from," this means that the data is improving still. In the unibody models, Apple has even up to 1000 cycles A charge cycle means here. Once from completely empty to completely full. 4 x 25%, however, are as much a charge cycle as 10 x 10 x 100% or 1%. Clearly most at home, the Dell Inspiron Mini 9 battery of this type feel at 40% to 80% charge - the same goes for iPods, iPhones and iPads.

Since these batteries are very sensitive to overcharging or deep discharging, the batteries and chargers with electronics in both parts of each other and prevent each of the worst.
On the other hand, batteries are the mobile devices in the absence of power as long as possible with electricity - so they charge more and to 100%.
Might be a charge either a gentle 80%, and a brief warning at 40% yes a market niche? At least that would increase the expected life of a little. In practice this effect by plugging and unplugging the power supply is in any event, it hardly ever.

Against overload protects the electronics of the Books very reliable - hence the many contacts to the MacBook batteries. Here each cell is charged individually and monitored, not just 1 x constant charging current to all cells as a single unit. In the unibody models called the Apple "Adaptive Charging", and varies the charging current more precisely, to in conjunction with an improved design to achieve up to 1000 charging cycles.

Equally harmful is low charge, to the electronic permanent shutdown. Thus, if the unit is not used, should the Dell Latitude D505 battery before loading to about 40%.

3. Temperature

Batteries do not like heat, especially not while charging. 15 -. 35 degrees are the "comfort zone", above 35 degrees, the batteries feel with increasing temperature uncomfortable and age, in practice one can do anything about very little - a current MacBook is significantly hotter than 35 degrees, and the battery may also . It usually sits in the series with a replaceable battery, even from the little ventilated bottom and thus in the heat accumulation.

But on a cool table top or something under ventilated by a pencil down he is better than a sofa cushion. One should also avoid if possible, lie let his MacBook in the blazing sun (possibly in the car) or to store it on a radiator.
If it just offered, rather then the Dell Studio 1436 battery should be charged if the book is not currently running at full load (eg movies play), or, ideally, only when it is idle or turned off and does not produce heat.

Frequently, one reads that it is helpful to take out the battery when the MacBook is powered by the AC adapter. Apple recommends However, the exact opposite: The battery is planned in the power supply. If the battery is removed, the Book on the number of cycles of the processor down to about half and works in a kind of "emergency mode" to prevent crashes due to lack of peak current. This saves unnecessary large and power hungry power supplies, the increased charge current from the battery still can not be processed. So let the battery still installed!

4. Calibration, regular full charge cycle ... is this really sensible?

Apple recommends these measures by pointing out that it is better for a battery, if "moving electrons," the. This was certainly the older battery types, such as the NiMhTypes, which lost as a performance athlete, in force when they were not required. With lithium-polymer batteries is that in regards to aging, but not more important. The reason it is recommended nonetheless still lies in the calibration of the Chargers and the charging indicator: Many small power demands arise for the electronics, no reliable data, including the charging becomes less accurate. In extreme cases, the device switches itself off without notice to you before, or it gets too close to the load limits, which leaves permanent damage quickly.

So it is quite reasonable, the battery every 30 days to fully charge and then discharge him until the occurrence of sleep again. This procedure is for all G4 iBooks and Powerbook up to 15 "Double-Layer SD model recommended. Apple even offers a reminder that enters the dates for this procedure in your iCal calendar. Simple Click Here- And your bookmark will automatically remind you every 30 days of the calibration of the battery.

All subsequent models, ie, all MacBook, MacBook Pro and MacBook Air models can be calibrated more optimally as follows:
Charge the Dell Studio XPS 13 battery and then the Book at least two hours, and the power supply can be. You can continue working while normal. Alternative: Switch off the book and do not use at least two hours.
Thereafter, the power supply during operation to purchase and operate the device to automatically shut down without power supply. That must not happen in one piece - especially with current MacBooks that's hardly provide.
Then the Book at least 5 hours without power supply in this state can be. The following charging to 100% complete the calibration.

If your MacBook is new, by the way, the simple charging the Dell Latitude D410 battery to do the initial calibration. The recommendation is repeated charging and discharging of each new MacBooks also the realm of fairy tales.

Information about the health of their own MacBook batteries can be way in the System Profiler (Applications / Utilities) read. Can find in hardware / power supply is there information on battery model, status, previous cycles, and more If you need more information and also the wants to check the battery temperature should be even the small program coconutBattery .