Batteries are the key to any cordless power tool, whether choosing a cordless drill, hedge trimmer, leaf blower, or any other type of cordless tool. Battery voltage is not the single most important factor to consider when choosing cordless power tools. With cordless tools available all the way up to 36 volts, amperage/hour, and battery type must also be taken into account. Many 14.4 volt tools will outperform 19.2 volt tools due to battery type and amp/hr rating.
Battery Rating Basics
Power Tool Battery Charger
Amperage hours and voltage are used to rate a cordless tool battery. Amperage hours are used to determine how long a battery will last and voltage refers to the flow or strength of the electrical current. As I was taught in high school shop class the theory of electrical current is easier to understand if you think of it as water being pumped through a pipe.
Voltage is used to measure the speed at which water is flowing through the pipe. Amperage represents the size of pipe that will be filled to capacity. Amperage hour rates how long the flow can be maintained or how long the battery will last.
As you can see by using this analogy the higher the voltage in conjunction with higher amp/hr the stronger the battery. Cordless power tool batteries are usually available in 1.4, 2.4, and 3.0 amp/hr. The amp/hr rating of the battery can be found on either the side or bottom of most batteries.
Battery Types
There are three types of batteries used in modern cordless power tools.
Ni - Cad ( Nickel - Cadmium ) are the oldest type used and are prone to developing a memory and early failure. Even when properly maintained they are lucky to be recharged 400 times before failure occurs.
Ni -MH ( Nickel Metal Hydride ) are a newer design than Ni - Cad and can develop a memory, though not as quick. The worst issue discovered with this type of battery, the higher the amp/hr rating, the fewer charge cycles before battery failure occurs.
Li - Ion ( Lithium - Ion ) are the newest type available and much better, compact, and expensive than the other two types. Memory is not a problem, and manufacturers claim up to 1,200 charging cycles before replacement.
Charging Time
Is another important consideration when considering cordless power tool batteries. Many older batteries need charging after only an hour or less of work and require six hours of charging time. If you have a lot of work to perform can you afford to wait for your batteries to recharge? There are Lithium - Ion batteries available that only require 15 minutes to recharge.
Stability and Maintenance
With the high cost of replacement batteries for cordless tools it pays to follow manufacturers recommendations for the care and maintenance of these tools. Cordless power tool batteries are just like any other piece of equipment and have an expected service life. When they become worn out and need replacing it is sometimes more economical to replace the entire tool kit. The cost of two replacement batteries is often times more than a new cordless tool with charger and two batteries.
Special Price!!! Bare-Tool DEWALT DCD950B 1/2-Inch 18-Volt XRPHammerdrill/Drill/Driver (Tool Only, No Battery)
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Bare-Tool DEWALT DCD950B 1/2-Inch 18-Volt XRPHammerdrill/Drill/Driver (Tool Only, No Battery) Feature
- Patented 3-speed all-metal transmission matches the tool to task for fastest application speed and improved run time
- Heavy-duty 1/2-inch self-tightening chuck tightens throughout operation providing superior bit gripping strength
- LED worklight provides increased visibility in confined spaces
- High power, high efficiency motor delivers 450 unit watts out of max power for superior performance in all drilling and fastening applications
- Best in class length for improved balance and better control;
Bare-Tool DEWALT DCD950B 1/2-Inch 18-Volt XRPHammerdrill/Drill/Driver (Tool Only, No Battery) Overview
The DEWALT DCD950B 1/2-inch 18-volt XRP hammerdrill/drill/driver has a patented 3-speed all-metal transmission, a heavy-duty 1/2-inch self-tightening chuck, and an LED work light. The DCD950B also has the best-in-class length for improved balance and better control.Bare-Tool DEWALT DCD950B 1/2-Inch 18-Volt XRPHammerdrill/Drill/Driver (Tool Only, No Battery) Specifications
Featuring an easy-handling length rated best-in-class for improved balance and better control, the DEWALT DCD950B 1/2-Inch 18-Volt XRP Hammerdrill/Drill/Driver packs a powerful punch in a heavy-duty industrial design. Powered by any DeWalt battery, this cordless tool keeps things simple and efficient with user-friendly features and a patented three-speed, all-metal transmission.
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 This hammerdrill / drill/driver has three speeds for all kinds of fastening and drilling applications. View larger. |
Whether you're tackling a heavy-duty professional job like electrical rough in or basic fastening and professional maintenance, you'll appreciate the versatility and dependability of the DEWALT DCD950B 18-Volt XRP Hammerdrill/Drill/Driver. It offers 22 clutch settings, and the 1/2-inch metal, self-tightening chuck tightens throughout operation providing superior bit-gripping strength.
Its stand-out feature is its patented triple speed range (0-500, 0-1,250, 0-2,000 rpm) and a corresponding triple speed range for hammer drilling (0 - 8,500, 0 - 21,250, and 0 - 34,000 bpm) which makes it easy to match the correct speed to the job.
Efficient, Powerful Motor for Robust Operation
The DCD950B owes its robust performance to a high-power, high-efficiency motor that delivers 450 unit watts out of maximum power for superior performance in all drilling and fastening applications.
Lightweight, Compact Design for Tight Spaces
Weighing in at just 3.9 pounds (without battery), the DCD950B lets you work all day without putting excessive strain on wrists and hands. Its compact size also makes it easy for you to drill in tight spaces like under sinks, and in corners or a closet.
Powered by Convenient, Long-Lasting XPR Batteries
The DCD950B uses any DeWalt 18-volt batteries - ideally XRP, which power the entire DEWALT line of 18-volt tools allowing users to run multiple tools off of the same battery packs.
Warranty Information
The DEWALT DCD950B 1/2-Inch 18-Volt XRP Hammerdrill / Drill/Driver is backed by a limited three-year warranty, 90-day money-back guarantee, and one-year free service contract.
What's in the Box
1/2-inch Hammerdrill/Drill/Driver, 360-degree side handle, and manual.
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