This might be more for FAQ but here it is. NI-Cd battery 1200mah 8.4 V. Manual states 11 to 12 hours for first charge and recommends dicharging when not in use to assure best battery life. I found how to make a dicharger using automotive bulb so thats taken care of. The question is after the first charge of 11 to 12 hours will it take the same amount of time each time after full dicharge to fully charge the battery. I have had drills and such battery run equipment that took a long first charge but after that a much short charge. The manual does not say anything in this regard. Am planning on a battery up grad in the future but would like to treat the stock one good and use as a spare.