Understanding the Different Types of Power Tool Batteries
October 21st, 2008    Subscribe To Our Feed
Today you can purchase every type of electric tool in an easy to use cordless version. It can be difficult to know what type of power tool batteries you need to buy to keep your tools running at peak power, with so many different options available. Producers of power tools are constantly in the market for new technology which will allow them to manufacture batteries that will last longer, and give more power to your favorite drill. We have brought our team of experts together to offer their advice on the different types of power tool batteries, and on how to choose the one that’s right for you.
Nickel Cadmium Batteries
Nickel Cadmium batteries are the original rechargeable batteries. First created by Waldemar Junger of Sweden, Ni-Cad batteries use both nickel and metal cadmium as electrodes. These power tool batteries are much more difficult to damage than nickel metal hydride or lithium ion batteries, but are not as environmentally friendly. The nickel cadmium batteries can handle being stored for longer periods of time completely discharged than can their nickel metal hydride and lithium ion counterparts; but are bulkier, and highly toxic.
Lithium Ion Batteries
Lithium Ion power tool batteries are the latest in power tool battery technology. These batteries were originally created to run much smaller devices, such as watches and hearing aids, and have only recently been adapted to work as power tool batteries. Everyone from Makita to Dewalt is using these great little beauties. They pack a bigger punch than their nickel counterparts, have a longer run life (but do not store well when discharged), and are less than half the weight.
Nickel Metal Hydride Batteries
The nickel metal hydride power tool batteries are a common alternative to their Ni-Cad counterparts. NiMH batteries can contain roughly three times the power of the Ni-Cad batteries, but self discharge when not in use much more quickly. These rechargeable batteries are also much lighter than nickel cadmium batteries, but are still rather bulky when compared to the lithium ion power tool batteries. These batteries are so popular, they are not only used as power tool batteries; but have served such purposes as powering hybrid vehicles, and android-type robot prototypes as well.
Choosing the right power tool batteries for your drill, saw, or hammer, requires mostly deciding whether you want a longer run time for frequent tool use, a longer shelf life for infrequent tool use, or a battery that is lightweight to prevent user fatigue. Regardless of which type you choose, most power tool manufacturers offer power tool batteries in all types for you to pick from.
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