Lately I've been using my Roland R-88 on set for some small narrative and documentary work, and I've been looking to increase my battery life. However, I've been looking into external battery sources (Np-1's and the like) and have had some trouble figuring out how to get a battery setup working in a bag.
A lot of the battery info and connectors online have VERY minimal information available, and I haven't been able to discover how I would go about setting up a system that would work, so I guess I'm just asking for some pointers of where to start? The Roland has a special battery sled for AAs, as well as a 4 Pin XLR (9v-16v) for external power, so I'm not sure what I need.