Cordless tool batteries are certainly a requirement in order for us to be able to use cordless power tools like a cordless power drill, hedge trimmer, leaf blower and many more. When buying a cordless power tool for your household projects, keep in mind that battery voltage is not the only important factor to consider. Other factors such as the battery's amp/hour capacity as well as its type should not be taken for granted when purchasing batteries for your cordless power tools.
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Cordless tool batteries are available up to 36 volts. A 19.2-volt battery or even a 14.4-volt one can surpass the battery rating of a 36-volt battery if those batteries with lower voltage capacity have higher amp/hour capacity than the latter. In rating cordless tool batteries, voltage as well as Amp hour is considered. Ampere-hour is a measure of how long the battery can last, while voltage is a measure of the battery's electric current or power. Thus, basing on the information mentioned, the higher the voltage and the higher the amp/hour capacity, the more powerful the battery is.
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The usual sizes available for cordless tools are 1.2, 2.4 and 3.0 Amp / hour. It's at the bottom part of the battery or sometimes on both sides where you locate the label that describes the batteries amp/hour rating.
There are three (3) major types that are used for modern cordless power tools. These include: Lithium Ion (Li-Ion), Nickel Cadmium (Ni-Cad) and Nickel Metal Hydride (Ni-MH).
Nickel Cadmium (Ni-Cad) offer up to 400 charge cycles before needing a replacement. Nickel Metal Hydride (Ni-MH) can last more than 400 times of recharge. Whereas, Lithium Ion (Li-Ion) batteries can power up your cordless power tools with a lifespan of more than 1,200 times recharges (as per manufacturer's product description) before a required replacement.
What about their charging time? Majority of older ones need 6 hours of recharging time yet last only an hour when used for works. When buying batteries your cordless power tools, charging time should be put into consideration. You do not want to waste your precious time while working, just waiting for the battery to be fully charged. Using Lithium Ion battery can certainly overcome this problem and it is the best way since this battery only takes 15 minutes to recharge.
We usually follow the recommendation of the manufacturer when it comes to maintaining cordless power tool batteries. This usually involves replacement batteries that sometimes force you to spend money. Similar to your power tools including their parts, cordless tool batteries come with service warranty.
The Three Major Types of Power Tool Batteries
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Nov 22, 2011 10:37:05
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>> Click here to update Black Friday prices for Bosch 1810PS 4-1/2-Inch Paddle Switch Grinder with Lock-On Switch <<
Black Friday Bosch 1810PS 4-1/2-Inch Paddle Switch Grinder with Lock-On Switch Feature
- 2-position vibration control side handle reduces vibration up 60 percent for increased comfort and less fatigue
- Unique directed airflow design diverts dust away from switch and vital components
- Epoxy coated field windings provide ultimate protection against abrasive dust and debris
- Sealed switch keeps debris out of the switch mechanism and extends switch life
- ServiceMinder brushes eliminate guesswork and stop the tool when preventative maintenance is required
Black Friday Bosch 1810PS 4-1/2-Inch Paddle Switch Grinder with Lock-On Switch Overview
Grinders lack the glamour of routers, say, and compound miter saws, but when it's a grinder you need, we don't think there are too many better choices out there than this one. "You get what you pay for" is, we think, even more true in the world of tools than elsewhere, and this is definitely a case in point. We've never met a Bosch tool that lacked quality, precision engineering, ergonomics and power, and this grinder is no exception. Our favorite feature on this one is definitely the paddle switch, not just for comfort and convenience, but for the ultimate in safety and control. We're not big fans of the lock-on button, because it negates the safety feature of the paddle switch, but we know some of you wouldn't have it any other way.
Black Friday Bosch 1810PS 4-1/2-Inch Paddle Switch Grinder with Lock-On Switch Specifications
Grinders lack the glamour of routers, say, and compound miter saws, but when it’s a grinder you need, we don’t think there are too many better choices out there than this one. "You get what you pay for" is, we think, even more true in the world of tools than elsewhere, and this is definitely a case in point.
We’ve never met a Bosch tool that lacked quality, precision engineering, ergonomics and power, and this grinder is no exception. Our favorite feature on this one is definitely the paddle switch, not just for comfort and convenience, but for the ultimate in safety and control. We’re not big fans of the lock-on button, because it negates the safety feature of the paddle switch, but we know some of you wouldn’t have it any other way.
As for user ease, it’s fabtastic. It weighs in just over 4 pounds, and the balance in hand is supreme. Up against other grinders in its class, the vibration is absolutely minimal, virtually eliminating that unpleasant arm-buzz. Another thing we like about this grinder is its ability to draw power from DC outlets, so if you’ll be grinding welds, this tool is a perfect choice.
The 4-1/2-inch wheel changes out fast, and the guard adjusts without tools. The whole tool says "quality," from the sealed switch to the ServiceMinder™ brushes that automatically shut down the tool when it’s time to change them, ensuring that this workhorse will be with you for a long, long time. --Kris Jensen-Van Heste
What’s in the Box
Grinder, guard, vibration-control auxiliary handle, flange kit, spanner wrench, abrasive wheel
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Super Joint System (SJS) is an innovation from Makita engineering where the motor armature and spiral bevel gear are linked by a coil spring. If the grinding wheel catches or binds, the coil spring relaxes and disengages the gears from the motor. As the grinding wheel stops, the gears and motor are protected. Makita's growing line of SJS-equipped grinders includes models ranging from a 1/4" die grinder to a 7-inch angle grinder.
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