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" The lithium-ion power tool revolution roared to life two years ago this month when Milwaukee Electric Tool introduced its brawny 28-volt products. Other manufacturers soon jumped in. Now the power tool market is awash in lithium-ion technology. For a look at safety issues associated with li-ion batteries in consumer electronics, see &amp;quot;Is Lithium-Ion Safe?&amp;quot; &amp;amp;gt;   Milwaukee&amp;#039;s V18 allows users to run earlier 18-volt nickel-cadmium (NiCd) tools with a lithium-ion battery. For example, buy the V18 hammer drill kit (about $330) and you can use its battery on a Milwaukee NiCd circular saw.   Homeowners can match a cordless tool kit to their budget with Ridgid&amp;#039;s Max Select tools. Each tool (about $120) is sold without a battery and uses Ridgid 18-volt NiCd batteries or the new 24-volt lithium-ion batteries.   This 14.4-volt drill (about $130) fits in a kitchen drawer. It has a two-speed selector switch, five clutch settings and a battery run-time window. The battery is built into the handle. Stand the drill on its charger to juice it up.   The Skil 2410 (about $80) weighs a bit over 1.75 pounds, and it couldn&amp;#039;t be simpler to use, owing to a chuck that accepts only 14-in. hex-shank bits and a 10-position, knob-controlled electronic clutch. Its battery holds a charge for 18 months. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/home/tools/reviews/a1155/4206950/>