Review: Coleman's 5.4V Cordless FlashCell Screwdriver - Popular Mechanics
Popular Mechanics have tested the Coleman 5.4V Cordless FlashCell screwdriver in a review of the tool which is capable of a recharge in ninety seconds. ‘According to Team Products International, the company behind the FlashCell, it runs for about half as long as an equivalent tool, such as Skil's lithium-ion-powered 3.6V iXO cordless screwdriver. Specifically, that means around 22 screws per charge, compared to 37 for the iXO. The company also estimates that the capacitor can handle over 500,000 full-charge cycles. And since there's no memory effect, you don't even have to wait the full 90 seconds before getting back to work. You can snap it into place (a satisfying, spring-loaded operation, by the way—reminiscent of old Fisher-Price toys), then watch the gloriously analog needle in the power gauge swing upward for, say, 45 seconds.’