Question: what is the difference between a 12 volt and 20 volt drill?
Answer: DEWALT's 12V MAX* batteries work the same way; they just generate less voltage than the 20V MAX* batteries. They also weigh less. While the full-size 12V MAX* battery weighs about 1/2 pound, the compact 20V MAX* battery weighs more than 1-1/2 pounds.