It can be easy to dismiss the importance of a high-quality battery in the functioning of your cordless tools. As it turns out, however, a good battery is just as essential to a cordless tool as a healthy armature or motor. Battery technology has significantly advanced since the introduction of cordless power tools; since the development of the Nickel Cadmium (NiCad), power tool batteries have evolved from NiCad to Nickel Metal Hydride (NiMH), and most recently to Lithium Ion (Li-Ion) technology.
Nickel Cadmium batteries were the first on the market for cordless power tools and though the technology is older, it is still very reliable. NiCads are less sensitive to adverse temperatures and have a high recharge cycle, meaning they can be charged and recharged repeatedly for a long period of time. NiCads are also less expensive than NiMH and Li-Ion batteries. On the down-side, however, NiCads tend to suffer from battery memory effect. This occurs when a battery can no longer accept a complete charge because it had been repeatedly charged without first being fully depleted. It seems the battery "remembers" how much energy it has discharged, and only wants to accept back that much energy from charger. The element Cadmium is highly toxic making it the most harmful battery to the environment. The NiCad's negative effects on the environment, in fact, cause them to be heavily taxed outside the U.S.A. As a result, many European vendors won't sell NiCad batteries.
Cordless Power Tool
Nickel Metal Hydride batteries run on a higher amperage than NiCads, because of this, they also have a longer run-time. NiMHs are lighter than NiCads but they are far more sensitive to hot and cold temperatures, in fact, NiMH can't work in below freezing temperatures (32 degrees Fahrenheit and below) and they degrade very quickly in intensely high temperatures (105 degrees Fahrenheit an up). Although the NiMH has a longer run-time than the NiCad it doesn't accept as many charges. NiCad and NiMH batteries do have very similar overall lifespans but NiMH has a larger energy storage capacity.
Lithium Ion batteries have a higher energy density than most other rechargeable batteries. A high energy density means that the Lithium Ion has a superior energy to weight ratio storing more energy for their size than most other batteries. Li-Ions have a very slow self-discharge rate meaning they retain their charge for much longer. Most rechargeable batteries significantly deplete as they are disengaged, the slow rate of charge-loss in Li-Ions, however, allows them to maintain most of their charge for longer periods, even on a shelf in your shop or garage.
There are many benefits to working with Lithium Ion batteries from their light-weight, to their long run-time. Li-Ions maintain their charge for much longer and have continuous max power throughout their energy discharge cycle. Other batteries consistently lose power as you work. Li-Ions are light-weight, and have a huge storage capacity, this means you now have a lighter, more efficient and powerful battery without the bulk. Lithium Ion batteries are by a landslide the least detrimental to our environment, and for many reasons they are the favorite of most craftsmen.
There are, however, some disadvantages to Lithium Ion batteries. Li-Ions are a bit more expensive. The complexities of production (in circuitry) accounts for this price difference. Each Li-Ion also requires a specifically built charger to accommodate that type of battery; this means that chargers are more expensive as well, and aren't universal to all types of Li-Ion batteries. The Li-Ion has a built-in chip that protects the battery from over and undercharging, and ensures it has a longer life. This computer chip, however, doesn't allow the battery to continue accepting charge once its energy level has dropped below a certain point. Once this happens the battery is essentially dead. Li-Ions also rely on this circuit to stay cool. Since Li-Ions lose charge so slowly, and the battery and charger communicate so well together, it's fairly simple to keep Lithium Ions temperate and at a safe charge level.
Remember, the quality of the battery you use is just as important as the quality of your power tool. The battery gives the right amounts of energy and finesse to your tools and their working parts.
Special Price!!! DEWALT DCK655X 18-Volt XRP 6 Tool Combo Kit with Impact Driver
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DEWALT DCK655X 18-Volt XRP 6 Tool Combo Kit with Impact Driver Feature
- DCD950 XRP 18-volt cordless hammerdrill with patented 3-speed all-metal transmission delivers up to 450 units watts out
- DC390 XRP 18-volt circular saw with 6-1/2-inch carbide blade can cut 2-by-4s at a 45 degree angle in a single pass
- DC385 XRP 18-volt cordless reciprocating saw with keyless blade clamp allows for quick blade changes
- DC825 18-volt impact driver with 1,330 inch-pounds of maximum torque
- DC411 18-volt cut-off tool with 6,500 rpm provides high power for cutting and grinding applications
- DW919 18-volt flexible floodlight provides hands-free use
DEWALT DCK655X 18-Volt XRP 6 Tool Combo Kit with Impact Driver Overview
On the jobsite or at home, you won't find a better suited tool for your projects than those from DEWALT. In carpenter circles and do-it-yourselfer groups you hear talk about the big yellow tools. If you want to start with a great selection of cordless power tools to tackle your next job, the DEWALT DCK655X 18-volt XRP cordless 6-tool combo kit is not the one to pass up. This six-pack of tools includes the DCD950 XRP 18-volt cordless hammerdrill that features the DEWALT patented 3-speed all-metal transmission for durability and 1/2-inch self-tightening chuck for ease of use and superior bit retention. Another big yellow tool in this collection is the DEWALT DC390 XRP 18-volt circular saw with 6-12-inch carbide blade and rip fence that can take on 2- by-4-inch wood at a 45-degree angle in a single pass. Store the entire six-piece collection in a rugged contractor bag for easy portability.DEWALT DCK655X 18-Volt XRP 6 Tool Combo Kit with Impact Driver Specifications
Featuring a series of tools that are both powerful and versatile, the DEWALT 18-Volt XRP Ni-Cad DCK655X Six-Tool Cordless Combo Kit makes it easy to get jobs done quickly. Each tool features a balanced body that's easy to control, plus smart design details that allow for application-specific performance. Each component is powered by DEWALT's XRP extended run time battery system.
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Built to deliver fast, dependable results, the DCD950 XRP 18-Volt Cordless Hammer Drill/Drill/Driver delivers 450 unit watts out for effective drilling and fastening in a wide variety of materials. Its patented, three-speed, all-metal transmission matches the drill's performance to the task at hand for efficiency, improved run time, and reduced wear and tear on the tool's motor.
This tool also offers a heavy-duty, 1/2-inch, self-tightening chuck with bit-gripping strength. When placed in hammer drill mode, the tool delivers 8,500 to 34,000 beats per minute for making holes in masonry. In addition, an LED work light near the trigger provides increased visibility when you're working in dark or confined spaces. The tool's well-balanced body and mid-handle, comfortable grip help keep you in control.
Circular Saw with Carbide-Tipped Blade
Able to deliver speeds up to 3,700 rpm for fast rip cuts and cross cuts, the DEWALT DC390 XRP 18-Volt Circular Saw is both versatile and durable. The 0 to 50-degree bevel capacity provides cutting solutions in a broad range of applications. The saw comes equipped with a 6-1/2-inch carbide-tipped blade and offers an impressive capacity at both 90 degrees (2-7/16-inches) and 45 degrees (1-5/8-inches). This means it can cut two-by-fours at a 45-degree angle in a single pass.
Other design highlights include a fan-cooled motor with replaceable brushes and a high-strength, all-metal shoe and upper guard.
Reciprocating Saw with Four-Position Blade Clamp
Quick, versatile, and ready for a range of cutting applications, the DC385 XRP 18-Volt Reciprocating Saw offers a stroke length of 1-1/8 inches, variable speed control ranging from 0 to 3,000 spm, and a four-position blade clamp that allows flush cutting.
This saw offers an anti-slip comfort grip for increased control and reduced user fatigue. Other key features include an adjustable pivoting shoe and trigger lock for repeat cutting. For added convenience, the blade clamp features an easy-to-operate lever that allows for quick, keyless blade changes.
Compact, Heavy-Duty Impact Driver
The DC825 18-Volt Impact Driver is capable of delivering 1,330 inch-pounds of torque. Its variable-speed trigger allows you to select speeds from 0 to 2,400 rpm. Also, the driver delivers 0 to 2,700 impacts per minute for quick results with minimum effort.
In addition, this impact driver's frameless motor features replaceable brushes for improved durability and extended tool life. A durable magnesium gear case and an all-metal transmission also contribute to the tool's durability. Additionally, the driver's heavy-duty impact mechanism directs torque to the fastener without kickback.
Versatile Cut-Off Tool
Delivering up to 6,500 rpm, the DC411 18-Volt Cut-Off Tool makes quick work of a variety of cutting and grinding tasks. Its low-profile gear case and jam-pot design provide precise gear alignment for smooth, quiet transmission and also allow the tool to fit in tight spaces. A quick-change, wheel release provides fast, tool-free wheel removal.
This cut-off tool also features a convenient trigger switch and detachable two-position side handle for comfort and control. This DEWALT cordless cut-off tool includes Type 1 and Type 27 guards.
High-Powered Floodlight with Flexible Neck
Rounding out this Cordless Four-Tool Kit is a powerful DW919 18-Volt Floodlight. This heavy-duty light features an easy-to-replace XENON bulb that can light up any crawl space, electrical panel, or hard-to-see area. The flexible neck can be wrapped around a two-by-four, pipe, or virtually anything else on the job site. Additionally, the light can be pointed at your work area, so you can work with both hands. Run time is approximately three hours on a newly charged 18-volt XRP battery.
XRP Extended-Life Battery System
Two XRP Ni-Cad extended run time batteries keep all of these tools running at optimum levels. They provide up to 40 percent more run time than standard Ni-Cad batteries. Additionally, any XRP battery can be used with any 18-volt DEWALT tool, which allows you to expand your toolkit. Also, the one-hour Ni-Cad charger helps maintain power to your packs all day long.
The Six-Tool Combo Kit features a DEWALT warranty package that includes a three-year limited warranty, a one-year free service contract, and a 90-day money-back guarantee.
What's in the Box
DCD950 XRP 1/2-inch, 18-volt hammer drill/drill/driver, DC390 XRP 18-volt circular saw, DC385 XRP 18-volt reciprocating saw, DC825 18-volt impact driver, DC411 18-volt cut-off tool, DW919 18-volt flexible floodlight, one-hour Ni-Cad charger, two 18-volt XRP Ni-Cad batteries, 360-degree side handle, 6-1/2-inch carbide-tipped circular saw blade, Type 1 and Type 27 guards, wrench, backing flange, Type 1 wheel, two-position side handle, and contractor bag.
 Keep your cordless power tools and batteries in this durable contractor bag. |
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