When a power tool battery stops holding its charge, the decision of whether to rebuild or replace can be tough. Replacement is quick and convenient, and the process is often as simple as walking into a home improvement store and buying a replacement off the shelf. While choosing to rebuild is a definite money saver, the process is a bit less convenient. To help bring some perspective to this decision, we need to have an understanding of the rebuilding process. As an example, let's take a look at the process of rebuilding a Dewalt 18v battery from a typical cordless drill.
Step one is to take or send the battery to the shop handling the rebuilding. After they receive your battery, they will disassemble the pack and remove the old cells. The Dewalt 18v battery contains 15 individual 1.2v cells a little smaller than your average C sized battery. Most shops will recycle the old cells. After the cells are removed, the battery pack is cleaned and prepared for the rebuild.
Dewalt 18V Cordless
With an industry specific spot welder, 14 of the cells are welded together in series and assembled into the pack; the final cell is then welded on the top of the pack and is contained inside of the shaft of the battery pack that slides into the drill. This cell also has the contact on it which is again welded to the top battery to provide the necessary power to the drill and for the charger. Most shops will then mark the date and sometimes even the initials of the technician who performed the service inside the battery pack.
Before closing the battery there is one final step that should be performed. The thermistor, a small heat sensing resistor similar to a circuit breaker, should be checked for proper function to ensure that the battery will charge properly. After finished the battery rebuild process, the top is screwed back into place and the battery is charged. After charging, the battery is ready for pick-up or shipment. Total turnaround time is typically 10 days to 2 weeks, but some companies like The Power Tool Doctor in Michigan are known to ship back a battery within 24 hours of receiving it.
While this article has outlined the basic process for rebuilding the Dewalt 18v battery, the process is similar with most common power tool batteries. Having an understanding of this process should prove to be beneficial when making the choice between replacing and rebuilding your power tool battery.
Black Friday DeWALT DCD940KX 18V 1/2" Cordless XRP Drill/Driver Kit 2011 Deals
Nov 26, 2011 01:03:00
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Black Friday DeWALT DCD940KX 18V 1/2" Cordless XRP Drill/Driver Kit Feature
- XRP extended run-time batteries provide long run-time and battery life
- Patented 3-speed all-metal transmission matches the tool to task for fastest application speed and improved run time
- Heavy-duty 1/2" ratcheting chuck helps prevent bits from slipping and falling out
- LED work light 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
Black Friday DeWALT DCD940KX 18V 1/2" Cordless XRP Drill/Driver Kit Overview
XRP extended run time batteries provide long run time and battery life. Patented 3 speed all metal transmission matches the tool to task for fastest application speed and improved run time. Heavy duty 1 2'' ratcheting chuck helps prevent bits from slipping and falling out. LED worklight provides increased visibility in confined spaces. High power, high efficiency motor delivers 450 unit watts out of maximum power for superior performance in all drilling and fastening applications. Best in class length improved balance and better control. Includes: 1 hour charger, (2) 18V XRP batteries, 360 side handle, and heavy duty kit box.Black Friday DeWALT DCD940KX 18V 1/2" Cordless XRP Drill/Driver Kit Specifications
The DEWALT DCD940KX 18-Volt 1/2-Inch Cordless XRP Ni-Cad Drill/Driver Kit is an ideal pick--whether you need to tackle a broad range of drilling and fastening applications, or just need reliable performance for a single task. Its high-power, three-speed transmission, and ergonomic design all contribute to easy handling, while the exclusive, XRP extended run time Ni-Cad battery system lets you work until the job at hand is complete. This kit includes a convenient one-hour Ni-Cad charger, two 18-volt XRP Ni-Cad batteries, 360-degree side handle, and a sturdy kit box.
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 Drill and fasten a wide range of materials with this three-speed cordless drill/driver. View larger. |
 The comfortable mid-hand grip and balanced body make this portable drill easy to control. View larger. |
The DEWALT 18-Volt 1/2-Inch Cordless XRP Drill/Driver is a versatile tool around the jobsite featuring its high-power motor and patented, three-speed, all-metal transmission that matches the drill/driver's performance to the task at hand.
Its high-efficiency motor delivers 450 unit watts out of max power for superior performance in a wide variety of drilling and fastening applications.
Designed for Comfort and Convenience
The DCD940KX is easy to control--even at the end of a long workday--with a comfortable, mid-handle grip and a body that is durable,, and well balanced. The drill/driver also comes equipped with a 360-degree auxiliary handle that allows for additional handling options in large hole drilling.
The DCD940KX features a heavy-duty, 1/2-inch ratcheting chuck that works to prevent bits from slipping or falling out, and an LED that improves work-space visibility in tight or poorly lit places.
Trademarked XRP Extended-Life Battery System
A tool's only useful if it runs long enough to get the job done, and The DEWALT trademarked XRP extended run time batteries keep the DCD940KX running at full tilt. They provide up to 40 percent more run time than standard batteries, and any XRP battery can be used with any 18-volt DEWALT tool, allowing you to streamline your tool kit. In addition, the one-hour charger helps to reduce downtime, so you can recharge and be back to work quickly.
The DCD940KX 18-volt 1/2-inch Cordless XRP Drill/Driver comes with 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
DCD940KX 18-Volt 1/2-Inch XRP Drill/Driver, one-hour charger, two 18-volt XRP batteries, 360-degree side handle, and kit box.
 Attach the 360-degree side handle when the job calls for exact drilling in hard-to-reach places. |
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