Someone said they are pretty good but I don't remember anything else. I remember they are lighter than A/B batteries but how long do they last? Please let me know if you have any knowledge of these. We have DVC Pro 610 camera and a v-mount.
We use IDX as well and have had no problems with them. They're lightweight, small and durable. After 3-4 years of cycling 4-5 charges a week they're still in great shape. I've switched to the newer E-10's which are especially powerful with a 98Wh rating.