Power Tool Batteries

Power Tool Batteries

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Specific brands have their own specific batteries. DeWalt Tools have a specific battery serial number for their different tools. For example, a certain DeWalt tools use an 18V whereas other will use an 9.6Volt. DeWalt battery serial numbers begin with the letters DW followed by 4 numbers. Black&Decker has a long list of batteries as well, ranging in voltage from 9.6Volt to 18Volt. RYOBI brand power tools have a much smaller list of batteries than does DeWalt or Black&Decker, and none of these batteries can be interchanged between brands. However, brand makers have started making batteries interchangeable between tools so consumers can purchase a package set of a good variety of tools, that all use the same interchangeable, rechargeable battery. For example, RYOBI has a set that includes a saw, a drill, and a flashlight that all use the same 18Volt battery. These sets usually come with two batteries so the user will almost always have a charge battery in stock.
Most current power tools use a NICD batteries. However, a new lithium-ion battery has recently been released for Black&Decker that is said to last ten times longer than traditional lo batteries. It is also said to charge to 90 percent capacity in 5 minutes. Lithium ion batteries used for power tools are only 3rd in demand behind laptop and cell phone batteries. The release of this new battery be very useful to users because they do not suffer from the same memory effect that is found with NICD batteries.
Nickel Cadmium batteries were the first on the market for cordless power tools and though the technology is older, it is still very reliable. NiCads are less sensitive to adverse temperatures and have a high recharge cycle, meaning they can be charged and recharged repeatedly for a long period of time. NiCads are also less expensive than NiMH and Li-Ion batteries. On the down-side, however, NiCads tend to suffer from battery memory effect. This occurs when a battery can no longer accept a complete charge because it had been repeatedly charged without first being fully depleted. It seems the battery "remembers" how much energy it has discharged, and only wants to accept back that much energy from charger. The element Cadmium is highly toxic making it the most harmful battery to the environment. The NiCad's negative effects on the environment, in fact, cause them to be heavily taxed outside the U.S.A. As a result, many European vendors won't sell NiCad batteries.
Nickel Metal Hydride batteries run on a higher amperage than NiCads, because of this, they also have a longer run-time. NiMHs are lighter than NiCads but they are far more sensitive to hot and cold temperatures, in fact, NiMH can't work in below freezing temperatures (32 degrees Fahrenheit and below) and they degrade very quickly in intensely high temperatures (105 degrees Fahrenheit an up). Although the NiMH has a longer run-time than the NiCad it doesn't accept as many charges. NiCad and NiMH batteries do have very similar overall lifespans but NiMH has a larger energy storage capacity.
Lithium Ion batteries have a higher energy density than most other rechargeable batteries. A high energy density means that the Lithium Ion has a superior energy to weight ratio storing more energy for their size than most other batteries. Li-Ions have a very slow self-discharge rate meaning they retain their charge for much longer. Most rechargeable batteries significantly deplete as they are disengaged, the slow rate of charge-loss in Li-Ions, however, allows them to maintain most of their charge for longer periods, even on a shelf in your shop or garage.

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Cordless Drill Batteries,
Cheap MAKITA Cordless Drill Batteries



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