2010Sled forum
Voltage system design for camera stabilization rigs: choosing between 12V only, 24V only, or switchable 12V/24V configurations
16 years old. Gear and prices may have changed since.
What the thread found
- A dual voltage switchable system (12V/24V) is preferable to a single voltage system to maintain compatibility with different cameras and accessories that may appear on future jobs
- Lithium-ion batteries nominally rated at 14.4V or 28.8V can output 17V or higher when freshly charged, requiring electronics designed to handle these higher voltages
- Down-converting voltage (stepping down from higher to lower) is more reliable than up-converting, though modern up-converters can handle significant amperage
- Some professional accessories cannot tolerate voltages above 14-15V despite their nominal 12V specification, making voltage regulation necessary in certain cases
- Two 12V batteries wired in series create a 24V system, while tapping between the two batteries provides a 12V output for accessories
- Reverse polarity backfeeding can occur when batteries are disconnected in the wrong sequence, requiring protective measures such as relays or diodes
Depends on
- Discussion focuses on film and video cameras as of 2010; modern camera power requirements may differ
- User mentions anticipated future replacement of the rig as they advance in skill, suggesting these conclusions may not apply to all career stages
- Some specific converter amperage ratings and performance tests were described as ongoing or not yet completed at time of posting
- The practical implementation details such as specific circuit diagrams were referenced as available elsewhere rather than fully explained in this thread