Facilitating snap-in mounting of AA batteries directly to pc boards, this new selection of leaf-type contacts feature a spring tension design that provides low contact resistance while adjusting to variations in battery length. The contacts are said to offer high mechanical strength and durability and to come in either leaf-spring (negative, part #590) or button (positive, part #596) styles, with each type fabricated from 0.010" nickel-plated spring steel. As such, users no longer need to specify battery brand, size and shape before purchase. Prices start at $34 per thousand in bulk quantities. KEYSTONE ELECTRONICS CORP., Astoria, NY. (800) 221-5510.