Dewalt Lithium Ion Batteries for cordless machines

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Our range of dewalt tools includes many cordless machines including the new Dewalt Nano range. To help you make a correect informed decission on either purchasing your first lithium ion machine or switching over to Lithium from Ni Cad- or Ni-MH batteries, we hope this guide will help you in the future.
 
Dewalt Lithium Ion Batteries warranty information:
 
There is a 2 year Warranty on all DEWALT NANO Batteries bought between 1st April 2008 & the 1st April 2010.
–  This warranty is valid for all NANO batteries which are supplied with DEWALT Cordless Power Tools.
–  NANO batteries which are bought separately.
If a battery is faulty and shows no visual sign of abuse, it will be exchanged free of charge.
–  To claim the 2 year Warranty, just send the faulty battery with a copy of the Customer receipt or Invoice to any of the DEWALT 5 Star Service agents. They will replace it for you free of charge with a new one.
Exclusions:  This warranty excludes abuse.  For example water ingress, physical damage caused by dropping or misuse.
 
Please note:
The Lithium Ion batteries have a thermal cut out, which will take effect once the battery is too hot. This will cause the battery to become unusable until it has cooled down.
Many buyers may believe that the battery will be faulty which isn't the case. They just need to be left to cool down & they will then work again.
 
More information on the batteries:

Lithium-ion Does Not Mean More Power What is it about lithium-ion that allows manufacturers to crank out such high voltage tools? Lithium-ion provides an ergonomic benefit as the batteries offer a better power-to-weight ratio compared to other battery technologies. It is important to understand that lithium-ion is not:

• power, which is determined by voltage • run-time, which is determined by Amp-Hour rating • torque or speed, which is determined by the tool design

The primary advantage of lithium-ion batteries is that for a given voltage, they are smaller in size and weigh less than nickel cadmium (NiCd) and nickel-metal hydride (NiMH) batteries.

Know Which Voltage Suits Your Needs Manufacturers are offering lithium-ion powered tools in a variety of voltages from 3.6V to 36V. With all of these selections, it can be confusing to decide what voltage is the best for replacing corded tools. As mentioned above, it is important to remember that lithium-ion does not indicate power; 14.4-volt is still 14.4-volt and 18-volt is still 18-volt, regardless of the battery technology. Therefore, if lower voltages provide you with enough power to complete your jobsite applications, then they are right for you.

If you are considering transitioning to a lithium-ion tool, you should consider the cost implications of making the change. Most lithium-ion tools cost up to two times more than NiCd and NiMH, but if lithium-ion tools allow you to cut your cord and increase productivity -- it is a wise investment.

There is still a huge market for NiCd and NiMH, and these technologies are still going to be relevant as they provide the necessary amount of power and runtime for most end user’s needs.

Consider the Formula There are hundreds of different formulas of lithium-ion, each with various features and benefits that impact the overall operation of the tool. Some formulas provide far more positive benefits than other formulas. When purchasing a lithium-ion powered tool, it is important to understand the performance and durability of the specific product you are considering. For example, consider how many holes you can drill per charge or how many recharges you can get over the life of the battery.

An example of a battery formula is the DEWALT 36V battery technology, which has a unique Nano-Phosphate lithium-ion design that offers a high level of power, run-time and durability when compared to other conventional lithium technologies. The DEWALT 36V battery delivers up to 2,000 recharges, over three times more than any other formula of lithium-ion tested.

It is important to note that there currently is no industry standard for measuring the amount of recharges a user will get from a battery. Some manufacturers test battery life using more strenuous tests that simulate jobsite applications, providing a “real measurement,” while other tool manufacturers test cycle life using applications that are not representative of real world, jobsite applications. Users should be aware of this issue and be cautious of cycle life claims until a standard is established by the industry.

Do Your Homework Higher voltage lithium-ion power tools are designed to provide corded users with the ability to get rid of their cords. This gives contractors the freedom of a cordless tool that is powerful enough to complete high draw applications on the jobsite. When developing its 36V solution, DEWALT conducted extensive field research to establish exactly how professional contractors use corded tools on the job. Sensors were attached to the tools to digitally record information. This information was collected electronically with data logger technology, which is a unique testing system developed and exclusively used by DEWALT, to determine the most effective high-voltage solution. As a result of these research findings, DEWALT determined 36 volts was the cordless platform with the capabilities that best matched or exceeded the performance of corded tools.

Below is a sampling of the independent testing results of DEWALT’s 36V platform. These results further underscore that high voltage, lithium-ion power tools have the ability to provide users with the power of corded, without the cord.

• The 36V ½” drill can drill a 1-3/8” hole saw into 20 gauge steel 22 percent faster than the industry’s leading 5.5 amp and 8 amp hammerdrills*.

• The 36V ½” drill has the ability to drill an average 67 holes using a 2-9/16” self- feed bit through a 2”x10”, which is 2.6 times the amount of the number drilled by the industry’s leading 18V drill. **

• The 36V reciprocating saw was able to make cross cuts in 2”x10” material in 7.34 seconds, 28 percent faster than the industry’s leading corded reciprocating saw*.

• The 36V reciprocating saw made an average of 64 cross cuts of a 2”x10”, two times the amount of the industry’s leading 18V saw**.

Industry data clearly shows that high voltage lithium-ion tools do in fact have the ability to perform equal to, or better than many of the industry’s leading corded tools. With these performance levels, it is clear that a transition to cordless tools provides the cost-effective benefit of increased productivity on the jobsite. Finally, users can untangle themselves from the burden of power cords.

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