Acer Aspire S7-391 External Battery Test : The Acer Aspire s7-391 has the most slim design and a gorgeous 1080 p HD touchscreen. However, the device is a widely criticized defects: in the case of using wi-fi Internet, the battery life is only about 4 hours and 10 minutes. The data to be below the average of the ultra-extreme about two hours. Notebook as a price of up to $ 1,699 this is definitely a competitive soft underbelly.
Happily, recent Acer for the Aspire s7-391 ultra-pole of this announced an external spare 2500 mAh lithium battery, can effectively extend the life s7-391. Let’s look at how this spare battery performance in the end.
The test results showed that connect the external battery backup, Aspire s7-391 ultra-pole of this life successfully extended to about 9 hours, 17 minutes. This data relatively notebook itself battery, about 5 hours, and also higher than the average ultra-portable notebook for about three hours.
Although the external backup battery can successfully enhance notebook battery life, but the connection with this ultra-extreme, overall not very beautiful, and even some ugly. User must use the screws to lock the battery in the bottom of the notebook, and then connect the plug to the power interface of the S7. The plug itself extends outwardly from about 3/4 inch, it is very easy to be careless. On the other hand, it also makes super this overall increase in weight from 2.8 pounds (1.27kg) to 3.4 pounds (1.54 kg).
In addition, during the test, we found that the external battery is installed, but also to ease the pre-existing Another problem: Previously, we have always felt that in the course of Aspire S7-391 front edge slightly Ge hand. When equipped with external backup battery, the notebook rear elevated approximately 0.75 inches (19.05mm), the entire notebook base becomes tilted forward so that the front edge of the hand also no longer Ge.
It is reported that the external backup battery is currently priced at $ 150, with smaller Acer Aspire s7 – 191 different, Aspire s7-391 ultra-extreme external backup battery is not bundled sales of notebook . However, in view of the price of the Aspire s7-391, arguably should contain the external battery. While the appearance of the external backup battery is poor, but it can greatly enhance the super endurance, in general it is quite worth buying.
[ source : Laptopmag ]