How to Test a Laptop Charger

How to Test a Laptop Charger

Laptop computers are one of the many items that we use that depends on a rechargeable laptop battery to keep it up and running. When your laptop fails to stay charged or to charge at all, it is time to troubleshoot the issue on your own before paying a professional. First test the charger to make sure that it is working properly.

You can test your laptop battery charger follow the below steps

Be sure that the charger is plugged into a working outlet and getting power.

Try to run the laptop from the laptop charger only; if it will not run off the charger alone then the charger is faulty or no longer any good to power the Sony VGP-BPS9. In some cases your laptop will run off the charger, but the charger will not be strong enough to charge the laptop. In this case you have a faulty charger.

Try charging your laptop with the laptop powered off. Sometimes the charger will charge the laptop when it is powered completely off, but not when it is on. If it only charges the Toshiba laptop battery when the laptop is off, then you have a faulty charger.

Check the Sony VGP-BPS8 for corrosion and/or leakage. If there is a sign of either corrosion or leakage you will need to stop attempting to use the battery pack and replace it immediately.

Test your charger with a voltmeter. If it is an AC charger of MacBook Pro 13 inch Battery,, set a voltmeter to 25 VAC. Make the contacts and probes touch, and look for a reading. If there is not a reading on the meter, the charger is not any good. For DC chargers, set a voltmeter to 25 VDC and make the contacts and probes touch. The meter should read at least 1V more than the chargers rating. If it does not, the probes need to be switched.

The simple test of HP Mini 2133 battery

The simple test of HP Mini 2133 battery

Let us take a look at this HP Mini 2133 battery life. From our point of view before the media coverage of such Internet features of this product is any time a free tour of the Internet. This function perfectly or not, is bound to need strong support of the power system. To this end, the HP Mini 2133 is equipped with a three-core 10.8V 28Wh lithium ion battery, the life test results are as follows:

The final results, in the full-torn BatteryMark 4.0.1, the piece of the battery capacity of adhering to a moderate 73 minutes (in this test phase HP Mini 2133 to 70% of the screen from top to bottom, and power management in XP system on the all power-saving features of the option off). If the day-to-day use, can reduce the screen brightness, and then associated with energy-saving function of the operating system, I believe that this battery may last 100 minutes usage time, the same time the satellite A300 battery can work 250 minutes.

Evaluation of a line of the products are excellent, I believe that their long working hours under the state of the performance of body temperature can also be regarded as one of important criteria. After all, no one is willing to use a long period of time may be the Internet version, the body temperature to achieve the degree of fried eggs. To this end, the author carried out in the HP Mini 2133 battery life test, the use of the testo 825-T2 Infrared Thermometer their body temperature was tested (the testing process in the basic maintenance of the indoor temperature around 25 degrees Celsius ).

To the final testing results, HP Mini 2133 battery in the performance of body temperature can be used in this part of “disorder” to make an assessment. The main heat source is basically in the left side of the keyboard and the left side of the fuselage cooling air vents, under the late拆机inspection, the region where is the processor. VIA C7M processor so “hot” performance really let my accident. In addition, the HP Mini 2133 notebook cooling Apple Design and passive fanless cooling body has some similar, are relying on the most metal body heat away. Therefore, HP Mini 2133 in the use of process engineering plastic materials than other Internet users this will bring the feeling of heat.

Might see here, there will be readers to PC Mark05, 3D Mark06 Although the classic, but I do not know this will be the actual performance of the notebook is. You can not come to the actual point? OK, of course, no problem! The needs of readers, that is our goal. Next, I look for you to display the HP Mini 2133 HD video decoding ability.

Proficiency test in high-definition decoding of H.264 I selected encoding format, video resolution of 1280 × 720 specifications “Teenage Mutant Ninja Turtles” to carry out the tests. As shown in the following screenshot, HP Mini 2133 in the performance tests can be described as barely passing. But its good sound, images can be synchronized, the screen is still a natural transition. During playback, HP Mini 2133 occupancy rate of the basic processors in about 90% of the entire process. Used as a VIA S3G UniChrome Pro II integrated GPU, system bus frequency is only 400MHz notebook, this performance is still talking about the past. HP Mini 2133 is HP addtion in netbook to support HP Pavilion DV1000,Pavilion DV3000, DV4000, DV4, DV5, DV7.

As shown in game screenshot, HP Mini 2133 in the performance of the game is also still far from satisfactory. More than two games in high definition is not set up the premise, can smooth out the feeling. Perhaps this author is really some redundant tests, select Netbook “Internet of the” consumer products more convenient for a working or living conditions, most of them has been interested in the age of the game. However, I would like to express here is that, HP Mini 2133 in your spare time can also become a tool for your entertainment pleasure. Perhaps it is not strong enough performance, but occasionally or inadequate.

As HP’s first ultra-portable mobile notebook, HP Mini 2133 HP carried on “with the most user needs for a wide range of mobile solutions,” the commitment to “full-function ultra-portable + + the best experience” to meet the unique advantage of increasingly strong The ultra-portable mobile needs. Its elegant exterior design, whole weight of only 1.19Kg, measuring only 27mm (positive) × 255mm × 165mm, its concise and well anodic alumina shell design, while ensuring at the same time compact and durable machine can reduce the weight of ; in the main configuration, equipped with 1GB or 2GB of memory (only has one memory slot settings), Genuine Windows Vista Home operating system, as well as standard disk drives, can provide fairly good experience.

HP Mini 2133 Review of the advantages and disadvantages:

Advantages :
1, many of the products in the Internet the only model of a metal material, and excellent mold design

2, speaker sound quality on both sides of the screen, in many of the Internet’s most successful products

3, such as 3D DriveGuard with hardware and software protection system hard drive, hard drive data more secure

4, key-bit layout is unreasonable, moderate-size keyboard, excellent use of hand

5, to break the trade restrictions, the provision of 2GB memory as XPS M1530 XPS M1730 PC, 160GB hard drive configuration

1, the normal body process of high temperature than those for similar models, the use of higher ambient temperature

2, pre-installed Vista system, the current allocation of the burden too heavy

3, six-core version does not provide battery life is too short

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Dell 4 cells 2200mAh inspiron Mini 9 battery test

Dell 4 cells 2200mAh inspiron Mini 9 battery test

Last night I ran a quick test on how long my new Dell Inspiron Mini 9’s battery would last under “normal netbook workload”.

This is the Dell inspiron Mini 9 battery Detail info:

14.8V 4Cells 32.4WAh Li-ion battery (As HP Pavilion DV4 battery, Pavilion DV5 battery, Pavilion DV7 battery, Pavilion DV3000 battery)

Dell inspiron Mini 9 batetry Test Details:

• OS: Gentoo Linux (what else? )
• Running programs: KDE 4, Konqueror, Thunderbird (fetching mail via IMAPS every 5 minutes)
• Conditions:
• Wireless connection to Internet, shell script kills and reloads Konqueror with three websites every two minutes (emulating a user who browses the WWW).
• Display set to lowest brightness level, screensaver / standby / etc. deactivated so that it was switched on all the time.

Dell inspiron Mini 9 batetry Test Data capturing:

The ‘remaining capacity’ value from /proc/acpi/battery/BAT1/state and a timestamp were written to a file every minute:

#!/bin/bash  LOG="/home/pn/batterylog"  echo "Battery log, started $(date)" >$LOG  while ((1))  

do    TIME=$(date "+%s")    

REMAINING=$(grep "remaining capacity" /proc/acpi/battery/BAT1/state | cut -b 26- | cut -d' ' -f1)  

  echo "$TIME $REMAINING" >> $LOG    sync    sleep 60  done

Dell inspiron Mini 9 batetry Test Results:

The Inspiron Mini 9 battery lasted a little longer than 4 hours and 50 minutes which means approx. 6.7 watts average power consumption while browsing the web over WLAN.

This time I decided to use OpenOffice Calc to create the graph -

The test from: Patrick Blog

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