Until I started buying the Eneloops and some of the long storage Ray o vacs, my energizers would just lose their charge in about a week. They didn't seem to hold or maintain there charge for very long. The Eneloops will hold their charge for months and the RayOVacs at least as long. The Eneloops are called low static discharge and the RayOVac is called a hybrid rechargeable battery. These batteries are almost perfect. The duracells are I believe are called precharged and will hold their charge for up to a year.

torgrot