If you are looking for a more universal powering solution for your Canon C70 by powering with mini V-lok batteries this product will be perfect for you.
The VLM-C70/15 will attach to a bar system and power via the 24V DC input.

By using this product, you are still able to use the BPA batteries direct with the camera. You can effectively hot-swap with this solution. The camera will always take the higher voltage first, however should you un-plug the DC input, the camera will auto switch to the BPA battery and power from it's battery port.

The VLM-C70/15 boasts 4x D-TAP outputs + 1 USB output, for powering further accessories around your camera.

Please note the DC output is regulated to 24v.