Calibrating the battery MacBook Pro and MacBook Air

Any portable devices running on battery power, it requires periodic calibration. Other special action by the user, in addition to temperature conditions operation, lithium-ion batteries do not require.

In some laptops have a function "calibration", sometimes in the form of a menu item in the BIOS, sometimes as a separate program, sometimes just as mentioned in the documentation. However, many manufacturers require that we perform this procedure. In fact, it is necessary only to correct errors that accumulate between the battery and digital circuit control, and represents a full cycle "charge - discharge." Without this, the efficiency of the battery will gradually decrease, and the charge level is displayed on the screen - do not correspond to reality.

If you regularly use your laptop away from the wall and are working on the battery, then it is sufficient to calibrate only once every two to three months. In the case of continuous operation of the network, Apple recommends this procedure at least once every three to four weeks. Let us describe this process for different devices and Apple.

Calibrating the battery MacBook Air and MacBook Pro

To begin the battery Apple laptop, fully charge. Know that the battery can be prepared by the screen display or lights on the power adapter.

Then leave the computer alone for about 2 hours. To work for him, of course, possible, but only with a connected power adapter. After this time, disconnect the charger, and continue to use your MacBook, while also trying to get as many of its processes for the fastest discharge.

When the computer will warn you about low battery, save all the data, but do not turn it off. After a while the machine itself will go into sleep mode. Keep this state for five hours or more, for a maximum discharge of the battery.

After you fully charge a laptop battery can be considered calibrated.

Note: When the computer goes into sleep mode, the reserve battery is about 3%. It is therefore very important to wait the moment when the "end" and the sleep mode in order to fully discharge the battery.

Calibrating the battery PowerBook and iBook

Here are instructions for calibration in an abbreviated form for devices that are no longer manufactured, but still operated by some users.

1. Charge your laptop battery to 100%.
2. Discharge her to a state that the computer automatically went to sleep.
3. The calibration process actually begins only now. Reconnect the adapter and charge the battery to the limit.
4. Finally, the last time discharge the battery, and do it as quickly as possible, having loaded the computer processes to the limit. 

Note: Do not store the battery of the MacBook completely discharged for a long time. This adversely affects its performance.

ASUS Announces Transformer Prime with quad-core Tegra 3

ASUS Transformer Prime has now been officially announced as the first surf board on the market with a quad-core processor. Nvidia Tegra 3, which we debated earlier today in detail is the heart of the new super-slim - 8.3 mm - plate which of course also possible to dock.

ASUS has, unlike most manufacturers of surf boards sold a lot of its first generation. It is nowhere near Apple's sales of iPad, but especially ASUS Eee Pad Transformer with his laptop dock has been a popular model on the market.

ASUS Eee Pad Transformer moonlights as a laptop, and in addition to the taking of some software was also some weaknesses in performance if you drew parallels with the "real" laptops. With the quad-core Tegra 3 processor ASUS hopes to change that and apart from one up to five times more powerful processor has taken the opportunity to trim his successor Prime Transformer on more than one place.

Powerful and thinnest on the market?

ASUS Transformer Prime made of pure aluminum and with its 10.1 inch screen, a profile of only 8.3 millimeters. This compares with his predecessor 12.95 millimeters, or for that matter, the former super-slim Samsung Galaxy Tab 10.1 with 8.6 millimeters. Transformer Prime is just really thin and despite its metal body has also managed to keep the weight down to 586 grams.

The 10.1-inch LCD screen is still at a resolution of 800 x 1280 pixels, but ASUS claims it with a new Super IPS + Panel managed to increase the brightness considerably with the competition. This, together with an oil repellent film on the panel to Prime Transformer become nicer to use outdoors.

Other news in the surf board is an 8 megapixel camera with f/2.4 aperture and flash, and an instant camera of 1.2 megapixels. Storage capacity is 32GB or 64GB and supplemented with the ASUS online solution ASUS WebStorage. We'll also support for Bluetooth 2.1 + EDR, G-sensor, gyro sensor, light sensor, compass, GPS, and a host of other features.

Properties	ASUS Transformer Prime	ASUS Eee Pad Transformer	Apple iPad 2	Samsung Galaxy Tab 10.1
Processor	1.3GHz NVIDIA Tegra 3 (4 x Cortex A9)	1GHz NVIDIA Tegra 2 (2 x Cortex A9)	1GHz Apple A5 (2 x Cortex A9)	1GHz NVIDIA Tegra 2 (2 x Cortex A9)
Memory	1GB	1GB	512	1GB
Screen	10.1-inch 1280 x 800 IPS	10.1-inch 1280 x 800	9.7-inch 1024 x 768 IPS	10.1-inch 1280 x 800 PLS
Dimensions	263 x 180.8 x 8.3 mm	271 x 175 x 12.95 mm	241.2 x 185.7 x 8.8 mm	256.6 x 172.9 x 8.6 mm
Weight	586 grams	675 grams	601 grams	565 grams
Storage	32GB/64GB + microSD	16GB + microSD	16GB	16GB
Prices	$ 499 / $ 599	$ 399	$ 499	$ 499

Up to 18 hours of battery life

Self-surf plate is also home to a lot of connections in which micro-HDMI, microSD reader and a combined speaker and microphone-in connection 3.5 mm format.Sist but not least we also have a battery of 25Wh, which should provide a battery life of 12 hours.

The dock, which measures 10.4 mm in profile and has a weight of 537 grams houses an additional battery 22Wh, which increases the maximum battery life to the full 18 hours. Here we also find a full-size keyboard, USB 2.0 connectivity and an SD memory card reader.

ASUS has chosen to ship the Prime Transformer with Android 3.2 Honeycomb in December but also announces that an update to Android 4.0 Ice Cream Sandwich is under development. The price tag is a few hundred dollars over the previous model and 32GB model is expected to start at around 5000 crowns, while the dock landing on the corresponding 1500 SEK including VAT. Both Prime Transformer and its Tablet will be available in two different colors, champagne gold and amethyst gray.

When ASUS Transformer Prime lands in Swedish store shelves remains to be seen, but we hope for a debut in next month while we of course will chase after a test copy of this on paper very interesting creation.