Not too much experience in this but I recently got a set of 9 rechargeable Energizer batteries and I think its the perfect thing for my video kit. I mainly run my Canon DSLR, H1 mounted on top w/ dead cat/standard wind screen, a Røde shotgun mic and depending on the complexity of the shoot I usually get thrown multiple things that need power and the convenience of rechargeable is great....the day my H1 died on me in the middle of an important video shoot that my boss was relying on to please her boss was the day I decided to try these out! I really like them! I will ask around with my other buddy's who are even more high-speed with their video set ups that require killer audio about how they do what they do! Do you just do audio or do you do video as well?