We switched a couple of our cameras over to the Rathbone Li-ion about 6 months ago and they are working out great. We bought the 160's and have not any problems, and they came at a really good price. We use them on SX cameras so we are using the v-mount batteries and on-camera lights and I don't think any of our guys have run out of power even on heavy use days like NFL games, and that includes shooting the whold game, post game and feeding into a laptop from the camera. I would reccomend them to anyone who needs to buy new batteries. The webpage also says they are compatible for use on the Sony and other chargers, which is not always true for the cheap chinese knockoffs. The best part is they build them in the U.S. in Tennesee.