Today I wanted to touch on some of the top selling, top rated 24 Volt cordless drills on the market.  Most of these are heavy duty drills that can take a lot of punishment and will last a many years.

Lets start with the Milwaukee 0625-24 18-Volt Ni-Cad 1/2-Inch Cordless Drill/Driver Kit.  Milwaukee introduces the new Lok-Tor 2 series of cordless driver/drills and hammer-drills. The rugged Lok-Tor series delivers high torque, long run-time and the increased durability and quality expected from Milwaukee Electric Tools. All Lok-Tor 2 models feature an exclusive all-metal, single-sleeve ratcheting chuck with carbide jaws to provide high grip torque on bits. A new Milwaukee-built high efficiency motor delivers up to 495 in.-lbs. of torque. The high efficiency motor and superior battery technology combine to provide the ultimate run-time.  Milwaukee makes a great drill and has always gotten high marks from customers who know a good drill when they use one. 

Next we are going to look at the DEWALT DC223KA Heavy-Duty 24 Volt 7/8-Inch Cordless SDS Hammer.  This compact 24V Rotary Hammer combines Best-in-Class size and weight with the power and performance one would expect from a corded SDS Hammer. The DC223KA includes DeWALT’s SHOCKSTM system for reducing vibration and increasing user comfort and productivity. It also delivers a hard hitting 1.7 ft lbs. of Impact Energy and has 3 modes of operation for Hammer Drilling, Rotary Drilling, and Chipping. Included with this tool are two 24V NiCd Batteries, 1 hour Fan Cooling Charger, 360O Side Handle, Depth Rod, and a Heavy Duty Kit Box. DeWALT provides a 3 year warranty on the tool and a 2 year service warranty on batteries.

In the world of 24 volt hammer drills the DeWalt DC223KA is a perfect and reliable choice for any craftsman looking to add to their toolbox.

Now, if you need something a little more lite weight then check out the Makita BDF460SH 24-Volt 1/2″ Cordless Drill/Driver Kit.  With 18 torque settings, this variable speed, reversing driver/drill delivers up to 476 in./lb of torque. Running on a powerful 24-volt (1.7 Ah) NiMH battery, it features a two-speed gear selection (0-460 or 0-1,500 rpm), industrial metal gear housing, and externally accessible brushes. The single sleeve 1/2-inch keyless chuck with shaft lock helps make bit installation fast and easy. 1/2-inch steel capacity, 1-1/2-inch wood capacity.

These are just a few of the top selling 24 volt Cordless Drills on the market today.

Kenneth Elliott
http://www.articlesbase.com/tools-and-equipment-articles/top-selling-24-volt-cordless-drills-681441.html

An excited news for laptop users that Hewlett-Packard will offer new “green” notebook batteries from Boston Power. The lithium-ion batteries that HP will offer can Save the Environment  and Last  for 3 years as an option on its Enviro Series notebooks can be recharged a thousand times and deliver an 80 percent charge in 30 minutes. Boston Power says the environmentally friendly batteries are also safer and can replace existing batteries.

A fast-charging laptop battery that promises to last at least three years without any degradation in performance is coming to the market as an option with Hewlett-Packard laptops. The Sonata battery is the product of three years of development work by Boston-Power and will be rebranded by HP as the “Enviro” battery and offered from early 2009 with select machines.

The battery can be charged to 80 per cent of capacity in 30 minutes, which could be useful for travellers who only have a limited amount of time near an electric outlet, and will go 1,000 charges before the battery’s capacity begins degrading. That’s a charge a day for three years — or four years if it’s only used on weekdays — so it should last the average life of a business laptop. Common laptop batteries today start to degrade after 300 charges.

“It brings a new level of performance to the market,” said Christina Lampe-Onnerud, founder and CEO of Boston-Power in an interview.

Boston Power’s lithium-ion battery can be recharged a thousand times compared to conventional batteries that can be recharged only 300 times, according to Frost & Sullivan, a consulting company.

The Sonata battery can also achieve an 80 percent charge in 30 minutes and a full charge in one hour without degrading cell performance, according to the company. Batteries currently on the market typically take as much as one hour to reach 80 percent power in a fast-charge cycle that can degrade cell performance by 60 to 80 percent within 300 charge cycles.

HP will back up its longer-life promise with a 3-year warranty and the battery will cost an extra US$20 to $30 over a standard model. Users will be able to select it with certain machines during the customization phase of ordering. It will initially only be available in North America but HP plans to offer it in other markets later.

Lampe-Onnerud first unveiled the Sonata battery at the Demo 2007 conference and the company has spent the last two years developing the technology and preparing for mass-production. Most of the batteries will be made by Taiwan’s GP Batteries while some will come from HYB Batteries in China.

At the time of its launch at Demo it was endorsed by Hewlett-Packard and the two companies have been working together ever since so HP’s move as the first major customer for Boston-Power isn’t a surprise.

Looking ahead the company is hoping to pick up addition laptop vendors as customers as well as break into other industries including consumer electronics and transportation, said Lampe-Onnerud.

johnxuster
http://www.articlesbase.com/hardware-articles/a-fastcharging-laptop-battery-can-last-for-3-years-is-coming-to-the-market-679318.html

A digital camera popularly known as a digicam is used for capturing video or taking still photographs by recording images via an electronic image sensor. Some other compact digital still cameras may also record sound and moving video as well as still photographs. Need not to mention that the second worst thing about digital cameras, after their price, is their battery consumption. Many digital cameras use AA cells to run and drained out in very less time sometimes less than an hour of shooting.

Since alkaline batteries drains faster than their counterpart rechargeable batteries, the biggest complaint for digital camera battery problems is that the batteries do not last long. Alkaline batteries lose their power while taking sixty to one hundred pictures however rechargeable batteries can last for two hundred to five hundred pictures in one go. Battery consumption of these digital cameras is increased as the newer generation cameras have more utilities like Image stabilization and high-powered zoom in its kitty.

So opting the rights batteries save your pocket and apart it also prevents to miss a memorable moment due to flat batteries. The most sought after batteries for the digicam are made up of lithium ions that can be charged over and over again and commonly used in most electronic gadgets. Regardless of its weight or size, it has the capacity to store more energy than other rechargeable batteries in the marketplace.

It’s an easy task to save your battery and extend its life. You need to take some little cautions while using your digital camera.

• Keep your Digital Camera Battery fully charged and then fully discharging it at least once every two to three weeks

• Always clean dirty battery contacts with a cotton swab and alcohol that enables to maintain a good connection between the battery and the portable device

• It is widely recommended that you must use the battery at least once every two to three weeks. If a Digital Camera Battery has not been used for a long period of time power of the battery may reduced

• It is a good suggestion to store batteries in a clean, dry, cool place away from heat and metal objects If it is not going to use for a month or more

• The most important thing is one should use the right kind of battery and should always clean the battery component and should always remove the battery when camera is not in use

Article Manager
http://www.articlesbase.com/electronics-articles/digital-camera-battery-more-power-every-time-713762.html

Duracell Active Charge is a range of rechargeable batteries with low self-discharge and can instantly be used and stays charged longer than standard rechargeable batteries. Theses batteries have elevated competence levels since they have up to 40 percent longer service life than ordinary battery of same size batteries. Active charge batteries have long cycle life as they contain up to 450-500 charge & discharge cycles throughout the entire life cycle and due to zero percent cadmium existence they seem to be environment friendly.

Duracell active charge batteries have a capacity to grip added energy and their ability to be recharged at any time without any sheer memory effect. This is the basic reason Active charge battery is very popular in devices such as flashlights, digital cameras, and hybrid vehicles. Active charge rechargeable batteries come in many shapes and sizes from automobile lead-acid type batteries to laptop and small digital camera batteries. The size is determined by the type of technology used and the design of the device in which the battery will be placed.

Using a charger, these batteries can be recharged many times. These rechargeable batteries may be used in automobiles, consumer electronics storage for solar arrays and electrical vehicles. With thin construction and light materials, lithium-sulfur batteries tend to weigh less than other, similar batteries. Active charge batteries have lowered weight so provide more power than other batteries available in market. In devices like cell phones, light weight is very mandatory therefore these batteries could be a big improvement. These batteries possess an extended lifetime and increased power withholding under humid environments.

These batteries have the benefit of a higher density and higher voltage capacity than many other batteries. Intrinsic to the basic design of Lithium-ion batteries is the ability to recharge hundreds of times whilst being able to hold their charge for long periods when not in use. Active charge batteries have no harmful compounds for the environment and have no impact of memory effect in long run. As it has the capability to recharge hundreds of times rather buying a new battery every time, it is widely accepted in most applications throughout. Batteries can be recharged for hundreds of times and perform amazingly well at high temperatures. In addition, they have low-impedance design and can deliver a high rupture of current.

Article Manager
http://www.articlesbase.com/electronics-articles/duracell-active-charge-battery-with-extra-competence-713767.html

Many manufacturers provided a laptop batteries calibration program, a Windows version and BIOS version, it is best to use these programs to correction,

Use the correct charger
Notebook computer power consumption is much larger than cell phones, power needs and at the same time the battery is running at full speed to meet the machine’s power supply requirements, various models of voltage, current, or even the interface is different, even the same interface, if the voltage and current lower than the nominal value of machinery, machine working at full speed when the battery may not be able to obtain sufficient charge current, which damage the battery is a great one. If the voltage and current much lower than the nominal value, or even find that simply can not boot to boot, or can not charge, please note the voltage and current machines must be in line with nominal value, with the plants of different products in general the same interface, but voltages and currents may be different, we must pay attention to this point! 

 

laptop battery does not use long-term preservation methods
Or whether it is full of??, they are actually incorrect, put long-term preservation of photoelectric batteries will lose their activity, even lead to the control circuit protection self-locking and can not re-use, full of power will bring about long-term preservation of the security problems, the most the preservation of the ideal way is to discharge to about 40% and then save, lithium batteries fear humid and high temperature, it should be placed in a cool dry place to preserve, but the temperature is not too low B, otherwise the capacity will be greatly reduced, about 20 degrees Celsius is an ideal Storage Temperature. 

laptop battery can not do so for their own batteries
The battery is a lot of people for such a deadly, manufacturers seem to expect someone to do so long ago, many brands of notebook battery design are self-locking function, once the batteries out of control circuit, the circuit enters a state of self-locking, Only the use of certain means in order to unlock, in this control circuit before will not work, that is equivalent to end-of-life batteries, notebook batteries batteries can not change the batteries, if you want to change batteries, please find a specialized battery maintenance companies to wield the sword.

 

VIII: charge can not charge to 100% of the treatment methods
Notebook batteries almost no chance of explosion, the largest is the issue of high fever caused by shells melt, but rarely lead to open flame, was released by a small number of incidents, the fact is that when the production technology of non-performing, in use led to a short circuit caused by, even if Most of this will be short-circuit the battery protection circuit in the circuit will not disconnect greater damage, unless it is in the protection of the circuit before the batteries short-circuit (notebook computer batteries should explosion is caused). It is the phone a lot of such things, in the final analysis or the quality of the battery problems, a large number of poor-quality mobile phone battery assembly, and notebook computers rarely have this kind of battery.

The reason why 99 percent to less than 100 percent after the charge is often because the battery control circuit of the records and the status of the battery itself, the deviation, the battery has not reached a record control circuit voltage, so power control circuit has been charging, in fact, battery has been replete with such problems can usually be resolved through the correction, but even if there is no correction, because the majority of charging circuit will be a long time can not be filled automatically disconnected after, or even smart record automatically refresh the current 99 percent to 100 %, even the fool has been non-stop design, but also because of the current very small at this time and will not cause injury.

The current laptop batteries are basically temperature detection circuit, when the battery temperature is too high, control circuit most mandatory disconnect the battery to prevent further temperature rise, so this kind of charge to the explosion in notebook computer batteries that occurred no less chance of the first prize in the lottery.

johnxuster
http://www.articlesbase.com/laptops-articles/correct-laptop-battery-maintenance-714716.html

Cell phones, also commonly known as mobile phones, are electronic devices which are used for communication purposes. Voice or data is communicated through these cell phones over a network of stations. Cell phones have all the features of a general telephone and also have various specialized features.

History and Overview:

Cellular Network was initially proposed by Bell Labs in the year 1947. He was the first person to establish cellular network in the year 1970 in Chicago. After that Japan launched the first mobile phone service in the year 1978. With the advent of time, there has been tremendous improvement in the mobile phone technology and in the year 1996, mobile phone giant Nokia launched its first multi use smart phone Nokia communicator which had the facility of internet connectivity and email services.

Cell phone handsets:

Cell phone handsets are the devices which are used for communication purposes. There are a wide rang of handsets with varying features which are being produced by manufacturers worldwide. Currently, Nokia is holding the largest chunk of market share of cell phones and is regarded as world`s largest manufacturer of mobile phone handsets.

Other major names in the list of cell phone manufacturers include Motorola, Sony Ericsson, Samsung, LG etc. These cell phones work on rechargeable batteries which obtain power from electric current, solar, dynamo, car battery charger etc. Before using a handset it needs to be activated with a SIM card provided by a mobile phone service provider who will also allot a unique number for your phone.

Features of Cell Phones:

Apart from having almost all the features of a normal telephone the cell phone also has various other unique features which make them very useful in today`s busy life schedule. These features include music, mp3 player, in built high pixel still and movie camera, personal organizer functions, Internet connectivity with browsing and emailing facility, different ring tones both inbuilt and with a facility to download, blue tooth and infra red connectivity etc.

Cell phones are also able to receive and send faxes if it is connected to a computer. Apart from Short messaging service (SMS), Cell phones are also enabled to send pictures and videos through Multimedia messaging service (MMS).

Uses of Cell Phone:

Cell phones are now widely used by both civilians and government agencies. Government agencies use mobile phones extensively for law enforcement, military purposes, disaster management etc. In the usage of cell phones, you must be particular about maintaining the culture and customs.

It is not decent to use your mobile phone while sitting in an important meeting. It is desirable that you switch off your phone when in any funeral or libraries or cinema halls etc. Most schools and colleges have restricted the use of mobile phones in their premises.

Beliefs about health and environment hazards and safety concerns:

Several concerns regarding human health resulting as an impact of mobile phone usage has been raised from time to time. There have been dermatological concerns such as occurrence of rashes on ears and cheeks of the users, hearing problems in the ear, heart problems concern etc.

Environmental hazards such as electronic waste and safety hazards in usage of the cell phone have been of great concern. There has been an increase in accidents by drivers while talking on cell phones. Road accidents while using a cell phone are on an increase. High rise towers of the cellular networks are also a cause of concern to flying aircrafts and birds.

The tremendous benefits of connectivity in all locations wherever you are have outshined the disadvantages and health concerns of cell phone and the number of cell phone users is rising day by day.

Roberto Sedycias
http://www.articlesbase.com/computers-articles/the-amazing-world-of-cell-phones-708138.html

Even lithium batteries seem to drain sooooo quickly! What kind of batteries do you use and any tips on maximizing battery life in external flashes?
@fhotoace Mine last a week, tops. I don’t get it. Could it be that I shoot at +2 the majority of the time?

When I was shooting weddings I used the Eveready Lithium AA in my Canon 580EX, however, I also had the Canon external battery pack. This pack holds 8 more batteries. I used the lithiums in it also, so I had a total of 12 batteries used by my flash. With this set up I was good for two full weddings / receptions easily. Probably could have gone three, but I did not want to take the chance of them dying suddenly. That is my biggest gripe with the lithium batteries. They die almost immediately with no prior warning. Ailkilines at least start going down gradually and give you a chance to change them before losing all power.

Bottom line, no matter what batteries you use, an external power supply makes a HUGE difference in how long you can shoot with the flash. Quantum makes outstanding external battery packs for both their own flashes and also other major brands of flashes, however, it is NOT cheap. The Canon external pack was a good compromise as to power / price, (if you are using a Canon flash of course).

steve

Cordless phone batteries are exclusively designed for each cordless phone brand and model. Cordless phone batteries are portable rechargeable batteries. These portable rechargeable batteries include nickel-cadmium (Ni-Cd), nickel metal hydride (Ni-MH) and lithium-ion (Li-Ion) cells. Several types of rechargeable battery systems, including those of lead–acid, nickel–cadmium, nickel–metal hydride, lithium ion and lithium-ion polymer exist in the market. The rechargeable batteries most extensively used in cordless phones are nickel cadmium (Ni-Cad) batteries and Nickel metal hydride (Ni-MH) batteries. Nickel metal hydride batteries and Nickel metal hydride batteries are interchangeable in cordless phones.
Nickel Cadmium batteries are one of the most proven and historically most widely used rechargeable batteries. Nickel cadmium batteries are durable. Nickel Cadmium batteries are very dependable and robust. But the Nickel Cadmium batteries have relatively low capacity when compared to other rechargeable batteries. Nickel Cadmium batteries are not environmentally friendlier since they contain cadmium. You can improve the life of your NiCad battery by the following way: Remove any static charge that may have built up during shipping by turning on the phone and let the battery drain for about 12 hours. Then be sure to charge the phone for at least 8 hours. For long-term performance, completely drain the battery and recharge it once in every three months.
Phones with Nickel metal hydride batteries that have greater capacity and do not have battery memory syndrome are better. The Nickel metal hydride batteries take about as many recharges as Nickel metal hydride batteries. The Nickel metal hydride batteries are durable and do not develop memory problems. Nickel Metal Hydride batteries are interchangeable with most Nickel Cadmium batteries. The Nickel Metal Hydride batteries generally deliver 10-25% greater capacity than Nickel Cadmium batteries. The Nickel Metal Hydride batteries are environmentally friendlier than Nickel Cadmium batteries since they do not contain cadmium.
Lithium Ion (Li-Ion) battery is one of the newer rechargeable battery technologies used. Lithium Ion batteries are one of the lightest rechargeable batteries available today. Lithium Ion batteries can deliver 40% more capacity than comparably sized Nickel-Cadmium batteries. Lithium Ion battery technology is one of the more expensive rechargeable battery technology.
A rechargeable battery having accurate and reliable state-of-charge (SoC) will improve the performance and reliability, and will ultimately lengthen the lifetime of the battery. Quality cordless phone batteries can boost the performance of your cordless phone handset by giving longer battery life for increased talk time and longer standby time away from the charging cradle. Even though newer battery types may not have the memory problems, all batteries may wear out eventually after repeated recharging.
Generally, in order to improve the life of the Cordless phone batteries , clean the charge contacts on the base and the handset with a pencil eraser once in every month. Also completely discharge the battery and then recharge it once in every month. If the battery does not recharge, replace it.
The need to regularly recharge batteries used in cordless phones and mobile phones may be eliminated in the future with the use of fuel cells which are one type of electrochemical cell. STMicroelectronics has developed fuel cells that are reportedly small enough to fit inside a cordless phone or mobile phone handset and are able to generate all the electrical energy needed to power the phone from liquid methanol, a low-cost and easily available organic fuel.

kevin moshayedi
http://www.articlesbase.com/business-articles/basics-of-cordless-phone-battery-701319.html

I am looking to buy a new battery for my MacBook. I am looking to buy it on eBay. I notice there are two types of batteries on sale. One is an "original" MacBook battery, which I’m assuming is a brand new battery. The second is a rechargeable battery (like the ones sold on the Apple website). Is there a difference between these two or are is the difference really just that the ones that say "original" are actual Apple batteries. The other ones do not say "Apple," so I’m assuming they’re just generic batteries.

Usually there are the Apple batteries (like the original one that came with the Macbook) and the non-Apple batteries. The Apple batteries will typically be of better quality, i.e. last longer on a charge, have more charge cycles, etc but it’ll cost more. The non-Apple batteries will save you a fair bit but you won’t get the same performance out of them.

If $$ isn’t a concern stick to the Apple batteries. However, it is eBay so be careful who you buy from. There’s bound to be some sellers trying to pass non-Apple batteries as genuine Apple batteries.

Another alternative is buying from an Apple accessory manufacturer directly. Like Fastmac for instance: http://www.macnn.com/articles/07/02/09/fastmac.macbook.battery/

Apple Powerbook G4 battery

As far as I know there are three style 3 PowerBook G4 batteries, I also confuse them for a long time. I dont understand why apple named its macbook as powerbook G4 12-inch, 15-inch, 17-ich, titanium and aluminum? I also dont know why not apple name it as dell inspiron 6000, inspiron 6400 series ? Now let me introduce these powerbook G4 batteries for you.

First : 12-inch PowerBook G4 battery

Its info : Chemistry : Li-ion
Volt : 11.1V
Capacity : 4400mAh
Dimension : 129.10 x 81.20 x 20.00 mm
Color : Silver
This PowerBook G4 battery OEM code is M9324 and fits not only apple PowerBook G4 battery but also can work with (apple powerbook g4 12 m8760, apple powerbook g4 12 m9007, apple powerbook g4 12 m9008, apple powerbook g4 12 m9183, apple powerbook g4 12 m9184, apple powerbook g4 12 m9690*/A, apple powerbook g4 12 m9691*/a, apple powerbook g4 12 series). The battery is made to power apple 12-inch powerbook G4 notebook, but the most shop mark it as powerbook G4 battery not 12-inch powerbook G4 battery. You can buy it in : 12-inch powerbook G4 battery

Second : 15-inch aluminum Powerbook G4 battery

Its detail info :
Chemistry : Li-ion
Volt : 10.8V
Capacity : 4400mAh
Dimension : 120.50 x 83.60 x 19.30 mm
Color : Silver
The notebook has a strange, long and repeat name : 15-inch aluminum powerbook G4.The battery OEM code is M9325. It can work with all 15-inch aluminum powerbook G4 series and apple macbook pro notebook. You can order its cheap replacement in 15-inch powerbook G4 battery

Third: 15-inch titanium PowerBook G4 battery

Its detail info :
Chemistry : Li-ion
Volt : 14.8 V/14.4V
Capacity : 4800mAh
Dimension : 115.70×109.15×19.00 mm
Color : Grey
This notebook is apple wide screen laptop. Its battery code is M9327. Can fis for : pple powerbook g4 series (15-inch titanium), apple powerbook g4 series (15.2″ tft screen), apple powerbook g4 series (dvi), apple powerbook g4 series (gigabit ethernet), apple powerbook g4 series (titanium). You can see more info in : Apple powerbook G4 battery.

Forth : 17-inch powerbook G4 battery

Its detail info
Chemistry : Li-ion
Volt : 10.8V
Capacity : 5200mAh
Dimension :
Color : Silver
Only replace 17 inch powerbook G4 battery.

We also are not used to remember its battery code :M9324, M9325, M9326. So we general call them powerbook G4 battery, in this situation we buy a wrong battery for my notebook. Oh thank godness. Now it happends to the apple’s newest Iphone, also their name are: 4GB Iphone, 8GB Iphone and so on. Hope apple name its products in an pellucid name.

The artcile from : Apple powerbook G4 review

laptopsbattery
http://www.articlesbase.com/hardware-articles/differentiate-four-powerbook-g4-batteries-685167.html