The NH-100/201, are rugged, professional and economical holders for using NP-style batteries with cameras and portable equipment. The NH-100/201 can be fitted directly to the back of cameras or via various adaptor plates to fit existing camera mounts where required. The NH-100 is a single NP holder and the NH-201, a dual battery holder. The NH-204 is fitted with a 4 Pin XLR DC output connector, and the NH-202 is fitted with a 2 Pin DC output, both for on-board lights or wireless microphone systems. The NH-201, NH-202, and NH-204 can be "hot-swapped" while the camera is still operating and is ideal for high power or long run time requirements. Dual boxes are ideal to utilize the weight advantage of Lithium Ion.