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Even though an increasing number of power tools are available with lithium-ion batteries, we do not believe corded tools will ever be completely replaced. A number of tools, such as angle grinders, operate at a high rpm and need the constant, large amounts of power that can only be supplied by corded tools. Running tools in a full production mode, over long periods of time, eliminates the viability of cordless power tools.
We will continue to produce both our corded tools and our NiCad lines because many users have owned and operated them for some time, and are satisfied with their performance. They might not be able to justify the additional cost of lithium-ion batteries or be able to give up the efficiency of corded power tools.
The benefits of lithium-ion powered tools can be easily demonstrated by displaying two models of the same tool, one with a NiCad battery and the other with Li-ion power. The weight difference speaks for itself, and is the greatest reason users choose lithium-ion batteries.
Power tool battery technology will continue to evolve beyond lithium-ion technology. The next step might be tools powered by fuel cells that run on methanol. The fuel cells will replenish the battery continually and will provide even more power than lithium-ion batteries in the same amount of space. Who knows?
