Toronto, Canada – GAO Comm (www.GAOComm.com) has launched its full-featured digital transmission system test device – E1/Datacom tester featuring a handheld design, smart navigation mode display and high resolution backlight LCD. This datacom tester is designed for the installation, testing, acceptance and daily maintenance of digital networks and is able to perform channel tests, alarm analysis, fault location and signal analysis. In addition, this tester provides various protocol converters with one-way and bi-directional bit-error-rate (BER) test functions. These capabilities make it ideal for field use.
This portable E1/datacom tester, model 5854, offers a number of practical functions such as frame data control and monitoring, time slot activity monitoring, handshaking signal control and monitoring, APS delay measurements and frequency measurements. Equipped with built-in NiMH rechargeable batteries and a smart charger circuit, the multifunctional tester can work continuously for up to six hours on a single charge and is charged with an automobile battery adapter. It saves and recalls up to 10 user-defined setups and 10 sets of results. Its software is easily upgraded via an integrated RS232C interface. Test results can be uploaded, conserved and printed using Test Manager Software.
Please visit http://www.GAOComm.com for more information or purchase this product online.
For any sales inquires please contact:
1-877 585-9555 ext. 601 – Toll Free (USA & Canada)
1-416 292-0038 ext. 601 – All Other Areas
sales@gaocomm.com

About GAO Comm
GAO Comm (www.GAOComm.com) is an international leading provider of communication test instruments, equipment for the installation, testing and maintenance of communications infrastructures.

Toronto, Canada – GAO Comm (www.GAOComm.com) has launched its full-featured digital transmission system test device – E1/Datacom tester featuring a handheld design, smart navigation mode display and high resolution backlight LCD. This datacom tester is designed for the installation, testing, acceptance and daily maintenance of digital networks and is able to perform channel tests, alarm analysis, fault location and signal analysis. In addition, this tester provides various protocol converters with one-way and bi-directional bit-error-rate (BER) test functions. These capabilities make it ideal for field use.
This portable E1/datacom tester, model 5854, offers a number of practical functions such as frame data control and monitoring, time slot activity monitoring, handshaking signal control and monitoring, APS delay measurements and frequency measurements. Equipped with built-in NiMH rechargeable batteries and a smart charger circuit, the multifunctional tester can work continuously for up to six hours on a single charge and is charged with an automobile battery adapter. It saves and recalls up to 10 user-defined setups and 10 sets of results. Its software is easily upgraded via an integrated RS232C interface. Test results can be uploaded, conserved and printed using Test Manager Software.
Please visit http://www.GAOComm.com for more information or purchase this product online.
For any sales inquires please contact:
1-877 585-9555 ext. 601 – Toll Free (USA & Canada)
1-416 292-0038 ext. 601 – All Other Areas
sales@gaocomm.com

About GAO Comm
GAO Comm (www.GAOComm.com) is an international leading provider of communication test instruments, equipment for the installation, testing and maintenance of communications infrastructures.

Gao Comm

For a laptop battery user, we should know Laptop Battery Basics :
Take care of your laptop battery and ensure that it will be ready to work properly when you need it most. Some general tips for laptop care include: avoid extreme temperatures, don’t leave a laptop outside in cold weather or leave it in a hot car. Cold batteries can’t create very much power and hot batteries will discharge very quickly. Use electrical power when available to keep battery charged. Don’t let your laptop go for long periods of time without using the battery.

Ni-Cad (Nickel Cadmium battery), and Ni-MH (Nickel Metal Hydride) were once highly used having 1.2 Volts per cell.
Li-Ion (Lithium-ion) have now taken their place having 3.6-3.7 Volts per cell and are much more practical for today’s power hungry notebooks. They have more power, higher voltage, less self drain, less weight, and can be smaller for the power you get. You will also not find the memory problems previous batteries were known for. I guess the only drawback is they’re more expensive.

Smart/dumb batteries

You will find most if not all of today’s notebooks use Li-Ion smart batteries. The fact that it’s smart means it has circuits that report its charge level so you can estimate the battery life remaining or when it’s about to run out.

Batteries are over-all measured in “mAh” (Milliamps/hour)

There are many things you can do to increase your battery life at the cost of performance, comfort, and features. What many will do that need to maximize their battery life for example if they’re going on a trip, is get their settings in order before heading out. Here’s a few things you can do:

Adjust LCD brightness
Most notebooks will be set to dim the LCD automatically by default from the factory. Unplug your system to check the brightness to verify. Some will do it over a few seconds slowly so you don’t notice it so you have to watch carefully. If you feel you could deal with the display being even more dimmed, then (Windows) right click your desktop background, go to “Properties”, then click the “Settings” tab at the top. Click “Advanced” and you will often find your settings for brightness in there which can vary depending on the graphics chipset and software on your system. Sometimes you can find the graphics control panel or settings hot link in your lower right hand system tray depending on software.

Turn it down to whatever you’re comfortable with. The LCD is one of the biggest battery hogs most laptops face keeping fed.

So try to know more information about your laptop batteries and keep it used longer.

johnxuster
http://www.articlesbase.com/hardware-articles/a-laptop-battery-guide-how-to-do-better-for-more-battery-life-694036.html

When looking for the perfect cordless drill you need to be very careful that to look at every problem before purchasing.  You will also want to look at which cordless drill batteries will last the longest.  For a long time, professionals would not touch a cordless drill.  Most professional did not enjoy starting jobs and having their drills stop in the middle of the job.  Also, the burn out rate for these batteries was very high.  A professional could go through 1 or 2 batteries every other month.  As a result, professional craftsman would opt to have wired drills that one had a longer life and two held up to the rigors of the job.  What made it worse was the fact that the batteries cost so much compared to just getting a new drill.  With cost so high, a new market was born for refurbished cordless drill batteries.

Cordless drill batteries have gotten better.  Now, even the cheapest batteries tend to last months or even years.  But the merchants had to do a lot to get them to this point.  That work has started paying off.  Now, craftsmen are tending to pick cordless drills over wired drills.  Thus, giving them more freedom to not have to worry if a work site has the electricity needed to use their drills.

Cordless drills have also taken on the Lithium-Ion battery technology.  Lithium-Ion are a type of battery
composed of Lithium, the lightest metal and the metal that has the highest electrochemical potential. Lithium, however, is an unstable metal, so Lithium-Ion batteries are made from Lithium ions from chemicals. Because of its lightness and high energy density, Lithium-Ion batteries are ideal for portable devices, such as notebook computers. In addition, Lithium-Ion batteries have no memory effect and do not use poisonous metals, such as lead, mercury or cadmium.  The only disadvantage to Lithium-Ion batteries is that they are currently more expensive than NiCad and NiMH battery packs.

That being said, manufacturers are also equipping drills with the NiCad and NiMH battery packs.  NiCad battery are a rechargeable battery with a nickel cathode and a cadmium anode.  They are often used in emergency systems because of its low discharge rate when not in use.  NiCad batteries are great for on the job recharging.  If done right, charging a NiCad battery could take as little as 4 hours.

Cordless drill batteries are also evolving.  I am sure manufactures will even cut down the recharge rate to 2 hour or below.  Some day, I wish.

Kenneth Elliott
http://www.articlesbase.com/tools-and-equipment-articles/cordless-drill-batteries-and-your-drill-681443.html

The open-circuit terminal voltage of a battery is 12.6 V. When a resistor R=4.00 Omega is connected between the terminals of the battery, the terminal voltage of the battery is 10.4 V.

What is the internal resistance of the battery?

The internal resistance can be found by imagining a resistor in series with the battery of the value of the battery’s internal resistance. When no current is flowing there is no current drop due to the internal resistance. However when a resistor is connected across the battery, there is a voltage drop due to the internal resistance. Thus the difference in the terminal and closed circuit voltages is equal to the closed circuit current times the internal resistance. So let Vt be the terminal voltage, Vc be the closed voltage, and let R be the resistor connected to the battery, and let r be the internal resistance "resistor". So I = Vc/R. aka the current through the real resistor is equal to the voltage across it divided by it’s resistance. So Vt-Vc = I * r, so the Vt-Vc = Vc/R*r. So r = R * (Vt-Vc)/Vc. so in this case r = (12.6-10.4)/10.4 *4 Ohms = 0.846153846 Ohms

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Toronto, Canada - GAO Instruments (www.GAOInstruments.com) is offering its E1/Datacom tester intended for the installation, acceptance testing and daily maintenance of digital networks. The E1/Datacom tester performs channel tests, alarm analysis, signal analysis and fault location and provides various protocol converters with one-way and bi-directional bit-error-rate (BER) test functions.

This portable E1/Datacom tester, model A0300021, features a rugged, handheld design, a high resolution backlit LCD screen and simple operation.It offers such functions as in-service framed and unframed testing, CAS and CCS signaling generation and monitoring, extensive error and alarm generation, detection and indication. The tester saves and recalls ten user-defined setups and ten sets of results, which can be uploaded and printed via Test Manager Software. Its embedded software can be upgraded via an integrated RS232 interface. It works continuously for up to six hours on a single charge with built-in rechargeable batteries and can be charged via a battery adapter. In addition, this tester runs under Windows 98, ME, 2000, XP and NT operation systems.

Please visit http://www.GAOInstruments.com for more information or to purchase this product online.
For any sales inquires please contact:
1-877 585-9555 ext. 601 -Toll Free (USA & Canada)
1-416 292-0038 ext. 601 - All Other Areas
sales@gaoinstruments.com
About GAO Instruments

GAO Instruments (www.GAOInstruments.com) is a global leader in research, development and manufacturing of high performance telecommunication testers, electronic measurement instruments and other test and measurement devices.

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Toronto, Canada - GAO Instruments (www.GAOInstruments.com) is offering its E1/Datacom tester intended for the installation, acceptance testing and daily maintenance of digital networks. The E1/Datacom tester performs channel tests, alarm analysis, signal analysis and fault location and provides various protocol converters with one-way and bi-directional bit-error-rate (BER) test functions.

This portable E1/Datacom tester, model A0300021, features a rugged, handheld design, a high resolution backlit LCD screen and simple operation.It offers such functions as in-service framed and unframed testing, CAS and CCS signaling generation and monitoring, extensive error and alarm generation, detection and indication. The tester saves and recalls ten user-defined setups and ten sets of results, which can be uploaded and printed via Test Manager Software. Its embedded software can be upgraded via an integrated RS232 interface. It works continuously for up to six hours on a single charge with built-in rechargeable batteries and can be charged via a battery adapter. In addition, this tester runs under Windows 98, ME, 2000, XP and NT operation systems.

Please visit http://www.GAOInstruments.com for more information or to purchase this product online.
For any sales inquires please contact:
1-877 585-9555 ext. 601 -Toll Free (USA & Canada)
1-416 292-0038 ext. 601 - All Other Areas
sales@gaoinstruments.com
About GAO Instruments

GAO Instruments (www.GAOInstruments.com) is a global leader in research, development and manufacturing of high performance telecommunication testers, electronic measurement instruments and other test and measurement devices.

GAOInstruments

A laptop battery pack includes a battery of cells, a casing or housing to protect and contain the cells, interconnect means for interconnecting the cells within the casing and conductors running from the interconnected cells to external terminations. The pack also includes a thermally sensitive circuit breaker which serves to disconnect the cells in the event of excessive cell temperatures. The battery pack may include a measuring-resistor strap having two projecting measuring contacts, which forms a portion of the conductors that couples the battery terminals and pack terminals.
A separate current-measuring circuit mounted in the housing provided in the battery pack is coupled to the projecting measuring contacts. A control module in the battery pack receives signals representative of cell voltage, temperature derived from a temperature sensor arranged in thermal contact with the cell and cell current derived by measuring the voltage across a sensing resistor with respect to the external negative voltage. A thermally sensitive circuit breaker provided in the battery pack is in thermal contact with the battery cells and is arranged to disconnect the cell current in case of excessive cell temperature. Usually the <a href=”http://www.needbattery.com”> laptop battery </a> consists of chemical cells and digital circuit. The success rate of the laptop battery depends on the battery type. Laptop batteries can be repaired but the work is often time consuming.
A characteristic laptop battery connection consists of positive and negative battery terminals, thermistor, clock and data. The positive and negative battery terminals are located at the outer edges of the connector. The positive and negative battery terminals have elasticity of demand to connect the battery outer shell. A thermistor wire is provided at the outside to allow for temperature protection. The most common thermistors are 10 Kilo Ohm NTC or 10kOhm at 20°C or 68°F. It is always better to use the thermistor during charge and discharge to protect the battery against overheating. The inner contacts accommodate the clock and data. Clock and data are usually combined on a one-wire system. The permanent data contained in the battery is programmed into the battery at time of manufacture. The permanent data includes battery type, battery ID number, serial number, battery manufacturer and date of manufacture. The temporary data contained in the battery is acquired during use and consists of cycle count, user pattern and maintenance requirements.
The fix terminal included in some laptop battery is made of flexible material and is adjustable for angle of demand. The fix terminal is selected from the group consisting of 30 degree, 45 degree, 60 degree, 90 degree and 180 degree. Some laptop batteries may have a solid-state switch that is normally in the OFF position. The battery will turn ON when the switch terminal is connected to the ground. Some laptop battery even includes an end-of-battery-life switch which is used to stop the functioning of the battery at a preset capacity level.    
The laptop battery is mostly made of two-wire system architecture. The two-wire system is usually configured to the System Management Bus (SMBus). The SMBus is based on a two-wire system using a standardized communications protocol. The SMBus battery has five or more battery connections. The connections of SMBus battery are commonly safe but testing this type of battery appears complicated. In future, intelligent <a href=”http://www.needbattery.com”> rechargeable battery </a> packs may include some control or monitoring means to provide charge current control during recharge, charge monitoring during discharge and charge, display of battery condition, and transmission of battery condition or other parameters to external equipment.

kevin moshayedi
http://www.articlesbase.com/business-articles/brief-about-connections-of-a-characteristic-laptop-battery-693861.html

At 3:00 on August 24, 26-year-old French supermarket security Jassoud li Buadi are using their own 3 months ago to buy the iPhone send text messages, “Suddenly, the screen exploded!” Buadi eyes were a piece of broken glass scratch, he angrily made to Apple’s claims.

Buadi an iPhone is not the only victims of the bombing. Earlier this month, southern France, a 18-year-old’s iPhone “issued by squeak and burst,” which juvenile eye injury; Paris suburb of a 80-year-old’s iPhone mobile phone display a burst Why lithium batteries into a “time bomb” At 3:00 on August 24, 26-year-old French supermarket security Jassoud li Buadi are using their own 3 months ago to buy the iPhone send text messages, “Suddenly, the screen exploded!” Buadi eyes were a piece of broken glass scratch, he angrily made to Apple’s claims.

Buadi an iPhone is not the only victims of the bombing. Earlier this month, southern France, a 18-year-old’s iPhone “issued by squeak and burst,” which juvenile eye injury; Paris suburb of a 80-year-old’s iPhone mobile phone display a burst in his hands. According to French media, statistics, recently have been 10 French consumers to report their iPhone mobile phone display an explosion or rupture. dell inspiron 2200 battery Incident also occurred in the Netherlands, a man will leave iPhone in the car and returned to find iPhone has ignited the fire burned beyond recognition by the Deputy driver’s seat.

Occurred with the previous iPod, laptop computer, cell phone explosion is similar to Europe in the multiple bombings in iPhone, but also from the past 10 years has become a mainstream digital products lithium batteries overheating caused by the battery.

In March 1976, the U.S. oil company Exxon engineers Whittingham created the first prototype lithium batteries - he used titanium sulfide as an anode, lithium metal as cathode, rely on lithium-ion in the “positive - negative - positive,” movement between the formation of current, complete charge - discharge process. Lithium batteries in energy density, the degree of self-discharge of the indicators are much better than those for other rechargeable batteries, giving rise to the scientific community and business R & D boom. 80s of last century, people are constantly improving lithium batteries, such as the use of lithium-containing compounds as cathode, carbon materials as anode, making it smaller and more energy density, running more stable, cheaper, lithium battery so gradually to become the mainstream of rechargeable batteries, in particular, is reflected in the portable electronic devices, and even has been used to power electric vehicles.

Planting the seeds of electrolyte “missile”

According to the U.S. well-known science writer series dell e1405 battery of articles in the lithium batteries in the introduction, the vast majority of lithium battery explosion caused by a short circuit, and the specific reasons, including charging overvoltage / over-current use of aging.

Lithium battery manufacturing process, because the manufacturing process itself flawed, it is easy to be insulated in this between the two poles, leaving metal dust, copper foil, aluminum foil pieces. The angle is expected in the battery than the fever (more common in long-term use or charging), the like boiling water in a grain of rice, as in the electrolyte to make random thermal motion. If you happen to have the battery positive and negative particles or debris near the middle of the diaphragm level, it could create a divide perforation, triggering micro-short circuit. As the batteries are flammable organic electrolytes, micro-short-circuit may cause an explosion, burning and other accidents, generally have the following three cases:

1. Sparks ignited the electrolyte, and thus bring disaster to come into contact with plastic body and flammable, resulting in fire;

2. Was experiencing an increase of temperature caused by the battery, the battery inside the space is small, perhaps because of increased pressure to explode;

3. Slow temperature rise inside the battery, the battery case to melt gradually, so that corrosive electrolyte leakage.

Lithium battery safety problems can not stop now, dell xps m140 battery because then the advanced manufacturing technology, will inevitably lead to planting the seeds in the electrolyte “missile.” Should be noted that the formal sector of lithium battery production and sales have strict norms of acceptable quality lithium batteries, the number and size of debris have been controlled within a small, very low risk of perforation of diaphragm; batteries outside the Shell also used flame-retardant material, is not prone to fire

annyhaiyan
http://www.articlesbase.com/direct-mail-articles/why-lithium-batteries-into-a-time-bomb-1274704.html

I live on a sailboat and currently have a starting battery and 2 deep cycle batteries connected to a hardwired battery charger and the alternator. I would like to add 2 more batteries. I already have the charger for them hooked up. Can I connect them to the alternator too? Can the alternator be connected to all 5 batteries and charge them while the eninge is runnning? Thanks!

sure you an hook them up wil just take longer to charge them

India is becoming a great place to find online shopping stores. Online shopping portals are increasing day by day in india and people are also becoming familiar to these sites. These sites sell almost every thing from a pin to air ticket. Below are some more products, have a look on these products also.

Blood Glucose Monitoring Kit GlucoLeader Value

Glucose meter (or glucometer) is a medical device for determining the approximate concentration of glucose in the blood. It is a key element of home blood glucose (HBGM) by people with diabetes mellitus or with proneness to hypoglycemia. A small drop of blood obtained by pricking the skin with a lancet is placed on a disposable test strip, which the meter reads and uses to calculate the blood glucose level. The meter then displays the level in mg/dl or mmol/l. GlucoLeader is the new improved Electrochemical Bio-Sensor Technology that measures the strength of the glucose in the blood.

Features:

• Wide Test Range (30 - 600 MG / DL)

• Lightweight & Portable: 9 cms X 3 cms X 1.5 cm, Weighs 30 gms

• Takes Only 0.003 CC Blood Sample

• Displays Test Results in 15 sec

• With Beep Indicator

• Stores Last 100 Test Results

• Battery Life: 1000 Tests

• Easy To Carry In The Handy & Portable Bag

Alchol Breath Tester

Features:

This little key chain gizmo is so small and portable and easy to use that you can use it anywhere and test your alcohol levels in just three easy steps and all in a matter of a few minutes. Just press a button, wait for the light to glow green then breath into the pipe and see the result. Green means you are safe because your alcohol level is under 0.02% BAC (or 0.1mg/l BRAC). Yellow tells you to be cautious, maybe wait a while before setting out and red of course means you should sleep it off. So perhaps this little gizmo will save you a fine or two in times to come.

Specifications:

• Small and portable

• Quick response and resume

• Performs 3-step alcohol test

• Press and hold the power button, the red and yellow light will flash once

• Press and hold the power button until green LED is turned on and hold until the test is finished

• Wait for 5 seconds, then blow into the breath pipe and see the test result (use alcohol level) as follows:

• Green light on: Safe - under 0.02% BAC (or 0.1mg/l BRAC)

• Yellow light on: Caution - 0.02% BAC (or 0.1mg/l BRAC) to 0.05% BAC (or 0.25mg/l BRAC)

• Red and yellow light on: Danger - over 0.05% BAC (or 0.25mg/l BRAC)

• Key chain and torch function

• Set the torch switch to to turn on the torch light, and do not use the test function in this status

• Use two AAA alkaline batteries (not included)

• Warranty: 6 Months Seller Warranty

Homeshop18 offering best health products online.

Monty Alexander

A laptop battery pack includes a battery of cells, a casing or housing to protect and contain the cells, interconnect means for interconnecting the cells within the casing and conductors running from the interconnected cells to external terminations. The pack also includes a thermally sensitive circuit breaker which serves to disconnect the cells in the event of excessive cell temperatures. The battery pack may include a measuring-resistor strap having two projecting measuring contacts, which forms a portion of the conductors that couples the battery terminals and pack terminals.
A separate current-measuring circuit mounted in the housing provided in the battery pack is coupled to the projecting measuring contacts. A control module in the battery pack receives signals representative of cell voltage, temperature derived from a temperature sensor arranged in thermal contact with the cell and cell current derived by measuring the voltage across a sensing resistor with respect to the external negative voltage. A thermally sensitive circuit breaker provided in the battery pack is in thermal contact with the battery cells and is arranged to disconnect the cell current in case of excessive cell temperature. Usually the <a href=”http://www.needbattery.com”> laptop battery </a> consists of chemical cells and digital circuit. The success rate of the laptop battery depends on the battery type. Laptop batteries can be repaired but the work is often time consuming.
A characteristic laptop battery connection consists of positive and negative battery terminals, thermistor, clock and data. The positive and negative battery terminals are located at the outer edges of the connector. The positive and negative battery terminals have elasticity of demand to connect the battery outer shell. A thermistor wire is provided at the outside to allow for temperature protection. The most common thermistors are 10 Kilo Ohm NTC or 10kOhm at 20°C or 68°F. It is always better to use the thermistor during charge and discharge to protect the battery against overheating. The inner contacts accommodate the clock and data. Clock and data are usually combined on a one-wire system. The permanent data contained in the battery is programmed into the battery at time of manufacture. The permanent data includes battery type, battery ID number, serial number, battery manufacturer and date of manufacture. The temporary data contained in the battery is acquired during use and consists of cycle count, user pattern and maintenance requirements.
The fix terminal included in some laptop battery is made of flexible material and is adjustable for angle of demand. The fix terminal is selected from the group consisting of 30 degree, 45 degree, 60 degree, 90 degree and 180 degree. Some laptop batteries may have a solid-state switch that is normally in the OFF position. The battery will turn ON when the switch terminal is connected to the ground. Some laptop battery even includes an end-of-battery-life switch which is used to stop the functioning of the battery at a preset capacity level.    
The laptop battery is mostly made of two-wire system architecture. The two-wire system is usually configured to the System Management Bus (SMBus). The SMBus is based on a two-wire system using a standardized communications protocol. The SMBus battery has five or more battery connections. The connections of SMBus battery are commonly safe but testing this type of battery appears complicated. In future, intelligent <a href=”http://www.needbattery.com”> rechargeable battery </a> packs may include some control or monitoring means to provide charge current control during recharge, charge monitoring during discharge and charge, display of battery condition, and transmission of battery condition or other parameters to external equipment.

kevin moshayedi
http://www.articlesbase.com/business-articles/brief-about-connections-of-a-characteristic-laptop-battery-693861.html