The Dewalt DC759 drill, known for its durability and reliability, has garnered a loyal following among DIY enthusiasts and professionals alike. However, when it comes to power and battery longevity, the conventional nickel-cadmium (NiCd) batteries that typically accompany these drills may not meet modern expectations. In contrast, lithium-ion (Li-ion) batteries offer longer run times, quicker charging, and reduced weight, making them a popular choice for power tool users. This guide provides a comprehensive how-to on converting your Dewalt DC759 drill to lithium, equipping you with the knowledge to enhance your tool’s performance and efficiency.
Understanding Lithium-Ion Batteries
Before diving into the conversion process, it’s essential to understand why lithium-ion batteries have become the preferred choice over traditional NiCd batteries.
Benefits of Lithium-Ion Batteries
- Longer Runtime: Lithium-ion batteries typically provide 2-3 times more usage time compared to NiCd.
- Faster Charging Times: They recharge significantly faster, allowing for more productivity.
- Lighter Weight: Li-ion batteries are lighter, enhancing the comfort of using your drill for extended periods.
- No Memory Effect: Unlike NiCd batteries, Li-ion batteries do not suffer from memory effect, maintaining their capacity longer.
Important Considerations Before Converting
While converting your Dewalt DC759 drill to lithium-ion can enhance its performance, several factors should be considered before starting:
- Compatibility: Ensure that the drill’s motor and circuitry can handle the altered voltage and chemistry of lithium batteries.
- Safety Risks: Improper handling of lithium-ion batteries can pose safety risks, including fire hazards. It’s vital to follow precautions.
- Warranty Implications: Converting your drill may void any existing warranty.
Preparation for Conversion
Before embarking on the conversion process, gather the necessary tools and materials. Ensuring you have everything on hand will streamline the procedure and minimize downtime.
Materials Needed
- Lithium-Ion Battery Pack: Select a compatible lithium-ion battery pack. Ideally, it should have a voltage rating near 18V (the typical rating for the DC759) and a capacity that offers an extended runtime.
- Battery Adapter or Circuit Board: Depending on the battery configuration, you may need a dedicated battery adapter or to modify the drill’s internal circuit board.
- Soldering Iron: For connecting wires or modifying internal components, a high-quality soldering iron will be needed.
- Heat Shrink Tubing: To protect any solder connections, heat shrink tubing is essential.
- Voltmeter: To test the voltage output during the conversion process.
- Screwdriver Set: A variety of screwdrivers will be needed to access the drill’s battery compartment and internal electronics.
- Safety Goggles and Gloves: Always prioritize safety during the modification process.
Steps to Convert Your Dewalt DC759 Drill to Lithium-Ion
Follow these detailed steps to convert your drill. Be meticulous and patient, as precision is key to ensuring the successful function of your tool post-conversion.
Step 1: Disassemble the Dewalt DC759 Drill
- Remove the Battery: Start by detaching the existing NiCd battery from the drill.
- Unscrew the Casing: Using the screwdriver, carefully remove the screws holding the drill casing together. Keep track of where each screw goes.
- Access Internal Components: Gently pry open the casing to expose the internal wiring and battery compartment.
Step 2: Remove the Old Battery Connections
- Identify the Connections: Locate the wiring that connects the NiCd battery to the drill’s circuitry.
- Unsolder the Wires: Use the soldering iron to carefully unsolder the wires from the old battery terminals. Ensure you remember where each wire was connected.
Step 3: Install the Lithium-Ion Battery Pack
- Connect the New Battery: Position the lithium-ion battery pack in the compartment.
- Solder the Wires: Carefully solder the wires to the new battery terminals. Follow the original configuration to avoid incorrect polarity.
- Secure Connections: Use heat shrink tubing over any exposed wires or solder points to ensure safety.
Step 4: Modify Circuitry (If Necessary)
Some lithium-ion batteries have different voltage requirements or may not connect directly to your drill’s circuitry.
- Test Voltage: Using a voltmeter, check that the voltage output from the new battery matches the requirements of the drill.
- Install Adapter (if required): If the voltages mismatch, consider installing a battery adapter or modifying the internal circuit board to accommodate the new battery technology.
Step 5: Reassemble the Drill
- Carefully Place Components: Ensure all wires and connections are secured, and reassemble the casing, taking care not to pinch any wires.
- Reattach Screws: Replace the screws you previously removed, ensuring a tight fit to avoid any rattling or movement.
Testing Your Converted Dewalt DC759 Drill
With your drill fully reassembled, it’s time to test the conversion.
Conducting a Functionality Test
- Charge the Battery: Initially charge the converted lithium-ion battery using an appropriate charger.
- Power On the Drill: Turn on the drill and monitor for any signs of malfunction, such as unusual sounds or overheating.
- Perform Drilling Tasks: Test the drill on various materials to ensure it operates correctly and efficiently.
Safety Protocols During Testing
- Supervise Charging: Never leave the battery charging unattended.
- Monitor Heat Levels: During testing, place your hand on the drill’s casing to monitor if it gets excessively hot. If it does, cease use immediately.
- Inspect for Damage: After testing, inspect the drill for any signs of wear or potential issues, like exposed wires.
Conclusion
Converting your Dewalt DC759 drill to lithium-ion power can significantly enhance its functionality, making it more efficient and user-friendly. While the process requires careful handling and an understanding of basic electrical work, the benefits far outweigh the risks. As you undertake this conversion journey, remember the importance of safety and compatibility—your diligence here will ensure your drill performs at its best for years to come.
With your newly converted drill, you can tackle any project with confidence, knowing you’ve invested in a tool that not only meets modern demands but also reflects your commitment to quality and efficiency in your work. Enjoy the transformed experience as you drill through projects effortlessly!
What is the main benefit of converting my Dewalt DC759 drill to lithium-ion power?
Converting your Dewalt DC759 drill to lithium-ion power offers significant advantages over traditional nickel-cadmium batteries. Lithium-ion batteries are lighter, which can improve the overall handling of your drill and reduce fatigue during prolonged use. They also provide a higher energy density, allowing for longer run times on a single charge, meaning you can complete more tasks without needing to swap out batteries frequently.
Additionally, lithium-ion batteries have a lower self-discharge rate compared to their nickel-cadmium counterparts. This means that even if you leave the battery stored for a while, it will retain more of its charge, making your drill ready for action when you need it. Furthermore, lithium-ion technology supports faster charging times, enabling you to get back to work sooner after a battery swap.
Are there any specific tools required for the conversion process?
Yes, performing the conversion from nickel-cadmium to lithium-ion power requires a few specific tools and materials. At a minimum, you will need a soldering iron, solder, and a multimeter to check the battery connections and any electrical work you might need to do. Safety glasses and gloves are also advisable to protect yourself while handling the drill and working with batteries.
In addition to tools, you’ll need to obtain a compatible lithium-ion battery pack designed to fit your Dewalt DC759 drill. Make sure the battery pack you select meets the voltage and size requirements of your drill. Some users also find it beneficial to have heat-shrink tubing and electrical tape on hand for securing any new wiring or connections you may need to make during the conversion.
What steps should I follow to successfully convert my Dewalt DC759 drill?
To convert your Dewalt DC759 drill, start by disassembling the drill carefully, removing the existing battery and housing while taking note of the connections. It’s crucial to document the original wiring to ensure that you can replicate it later with the new lithium-ion battery pack. Once you have the battery removed, measure the dimensions and voltage to confirm compatibility with the new lithium-ion option.
Next, solder the new lithium-ion battery terminals to the existing wiring in your drill, ensuring correct polarity—connecting positive to positive and negative to negative. After securing the connections, assemble the drill back together. Test the functioning of your newly converted drill with the lithium-ion battery to confirm that everything is working correctly, and for safety, make sure that all components are tightened and secured before use.
Can I use the original charger for my Dewalt DC759 after the conversion?
Unfortunately, the original charger designed for nickel-cadmium batteries will not work effectively with a lithium-ion battery. Lithium-ion batteries require a specific charging circuit to manage various aspects like voltage and temperature to avoid overcharging, which can be detrimental to the battery’s health. Therefore, it is essential to acquire a lithium-ion compatible charger that meets the voltage requirements of your new battery pack.
When selecting a charger, choose one from a reputable brand that guarantees safety and efficiency. Built-in safety features such as temperature monitoring and automatic shut-off can prevent potential hazards associated with charging lithium-ion batteries. Using the appropriate charger will prolong the lifespan of your new battery and ensure that your drill operates optimally.
Is it safe to convert my Dewalt DC759 drill to lithium-ion power?
Converting your Dewalt DC759 drill to lithium-ion power can be safe if performed correctly and with the right components. It’s crucial that you follow detailed instructions and safety guidelines throughout the conversion process. Ensure that you are comfortable working with electrical components and take necessary precautions, such as wearing protective gear like safety goggles and gloves, while handling batteries and soldering.
Moreover, using high-quality lithium-ion batteries and chargers designed for power tools will minimize risks associated with overheating or short-circuiting. If you are unsure about any steps or lack experience with electrical modifications, it may be wise to consult or hire a professional to help with the conversion, ensuring that everything functions properly and safely.
Where can I purchase the necessary lithium-ion batteries and chargers for this conversion?
You can purchase compatible lithium-ion batteries and chargers for your Dewalt DC759 drill from various online retailers, hardware stores, or specialty electronics shops. Websites like Amazon, eBay, and manufacturer-specific outlets often carry a range of options, allowing you to compare prices and read customer reviews to ensure you’re getting a quality product. Always look for batteries and chargers that specify compatibility with your Dewalt model.
Local hardware or tool supply stores may also stock lithium-ion batteries suitable for your drill. If you prefer to shop in person, this can be a good way to get immediate assistance and perhaps even advice on the conversion process from knowledgeable staff. Always verify the specifications before making a purchase to ensure compatibility and safety.