Showing posts with label battery. Show all posts
Showing posts with label battery. Show all posts

Tuesday, May 1, 2012

Getting the right Saw, Saw Selection Tips


Choose a blade size

Saw blades are extremely pricey, the fewer saw blades you buy, the happier your wallet will be. If you plan on buying a miter saw, table saw, a radial arm saw, or some assemblage of these, pick a blade size and stick with it. While there are a variety of sizes available, the most popular and common blade sizes are 12" and 10". If you stick with the same blade size for all of your saws, you will be able to buy one blade and use it with several saws. In the long run, this will save you hundreds of dollars.

Corded or cordless?

Cordless tool batteries have made remarkable advances over the last several years. Tools that you would think could never be cordless, such as circular saws and miter saws, now offer cordless options. If you are thinking about purchasing a cordless saw and you have, or may have, other cordless tools, consider staying with a single battery/manufacturer system so that you can share batteries amongst all of your tools. Additional batteries are very expensive -- it is usually cheaper to get a brand new tool than to purchase replacement batteries. If you buy several tools from the same maker all with the same battery systems, you'll have extra batteries available to finish your task, this can significantly increase the work you can complete.

Before settling on a cordless saw, don't forget that even though cordless technology is very advanced today, battery life may restrict the amount of work you can complete in a single work period. If you're a hobbyist or you don't use your saw for extended periods of time, a cordless saw may be a good solution for you. But if you are a contractor the type who will be cutting wood all day long, you may want to skip cordless technology for tools that draw large amounts of power.

Cordless saws are also more expensive to purchase and maintain. Your cordless saw may last for 10 or 20 years; but the batteries will need to be exchanged several times during that time. In addition to the steeper initial cost of a battery operated saw, you can expect to be spending more money in the future, perhaps repeatedly, as the batteries will need to be replaced eventually.

Do your reading before you buy

Saws are a large investment -- they are costly and they get a lot of use on most job sites. Purchasing the right saw is a big deal and even more important is to avoid buying a saw that doesn't work for you. Before buying any saw, always surf the internet for opinions, rankings, and reviews for the kind of saw you are thinking about getting. After using a saw for a week or so, you will form an opinion about the saw. But it is almost impossible to get the correct feel for a saw just by studying the specifications. When you check the web for saw reviews and rankings, you will get the opinions of people who have laid hands on the saw and who have an informed opinion. If people have problems with their expensive new purchases, they're usually more than happy to let other people know if something is not good. Let their bad luck save you from getting stuck with the same bad saw.

Before purchasing any type of large tool, read the user manual first. You can find out a lot about how easy or hard a saw is to use by looking through the manual. If it takes a whole bunch steps and an iterative process to make sure that your saw blade and table are square, you can look forward to spending more time setting up your saw than using it. If you are considering a saw where there are different cutting configurations, check the manual to find out what is involved in changing the configuration. If the process is complicated and not easy to understand, it may be more hassle than it is worth and you will be inclined to just not use your saw this way. Even though the saw has some cool features, if they are too difficult to use, you will not use them. So why pay extra for them? You can flush out a lot of these sorts of issues just buy reading the manual for the saw before you buy it.


Sunday, January 29, 2012

Laptop Batteries are More Than a Black Box

More than meets the eye.

Laptop batteries are the most important battery in the field of rechargeable batteries, but they are also the most complicated and regulated of all rechargeable batteries. The process alone to manufacture a laptop battery is long. How laptop batteries interact with the computer to function properly is another lengthy process. Manufacturers are also working constantly to improve laptop battery technology.

The process used to created laptop batteries involves a system of tests and re-tests to insure safety and reliability. Inside that plastic case that is the finished product, there are a number of components besides the battery that make it work. Inside the casing, there are safety fuses, breakers, thermistors, and charge electronics which all aid in the functionality of laptop batteries. The battery pack casing is welded together in a specific process and is then sent on for final inspection. During final inspection, tests are documented for form, fit and function and once the battery passes the test, it is labeled with a lot and date code.

All those extra components added to the battery pack are essential for laptop battery functionality. The thermistor controls the resistance of the battery and tells the computer to stop charging when the battery heats up as it completes charging. The circuit breaker helps protect against over charging and short circuits.

Laptop batteries are built with the best quality battery components that can be found. Battery cells are ensured to yield the highest capacity and safety qualifications, whether the battery cell is NiCD, NiHM, or Li-Ion. Some batteries are even equipped with their own microprocessor that communicates important charge information to the computer.

Information about laptop batteries proves that they are some of the most advanced rechargeable batteries available. Now when choosing a laptop battery, you won’t just see a black box, but rather a mini-computer that helps your laptop to run reliably and effectively.

Monday, December 27, 2010

repair your laptop easy and by your self

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 from LaptopRev.com 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.
1. Smaller Is Better
Consider an ultraportable or thin-and-light rather than a desktop replacement laptop. Smaller displays use less power. Going with a hard drive that runs at 4200rpm uses less power than a hard drive running at 540
2. Power Control
Use as little power as possible by adjusting laptop settings. Use the Power Options to set to the laptop to go inactive after a set amount of time. Set adjustments so that the display goes off first, then hard the hard drive stay active a bit longer and store the system content’s to the RAM.
3. Turn Down the Lights
Adjust the display brightness to a lower setting, make sure you can view the screen without squinting. You can also adjust the brightness of the display to suit the conditions you are working in.
4. Watch Your Battery Use
Keep an eye on your battery consumption and know how much power you have remaining. Use the battery power icon on the system tray or you can purchase batteries which have LED gauges on the outside of the battery itself.
5. Charging It Up
Whenever you have access to a power source, charge the battery. Before you leave on any trips, fully charge the batteries, especially if you don’t know where or when you might have access to any electrical outlets.
6. Get Another Battery
Some laptops are capable of running with two batteries. If you cannot run two batteries, check with the manufacturer to see if there are high capacity batteries available. External batteries can also be used to extend operating time.
7. Drain the Battery
The first time you use your laptop with battery power, allow the laptop battery to completely discharge. Do this at least twice and don’t try to charge the battery when it is half discharged.
8. Clean Batteries
Keep the battery and its connections clean and free of debris. Clean your battery terminals on a regular basis using a cotton swab with rubbing alcohol on the tip.
9. CMOS Battery Check-Up
The backup battery is a CMOS battery which is a secondary battery to power the clock and can drain a main battery if it is dead. Check with your User Manual or manufacturer’s web site for the location of the CMOS battery and where to get a replacement.
10. Turning It Off
Don’t run programs or devices that you aren’t using. Remove PC cards and turn off Wi-Fi software. Using your laptop to watch movies or play games will drain the battery quickly as well.