I own a Shadow sled and I'm mostly flying Alexas in 24v mode.
Instead of switching two 12v batteries in series I have had a 24v battery plate made to Chris' example. http://www.steadicam...showtopic=14350
It allows me to attach the 24v batteries that come with the camera on the bottom of my sled and supplies the 24v system.
A neat feature of the shadow sled is that it has a DC/DC step-down converter built in to convert the 24v to 14.4v (or something in that neighborhood) to supply the 12v system with power while simultaneously powering the camera with 24v.
This is where my problem comes in. I'd like to use one of my 12v batteries on battery plate nr.1 to supply all the 12v systems and the 24v battery on the bottom battery plate nr.3 to solely power the camera and nothing else since the Alexa is hungry enough.
What happens now is that as soon the 24v batt is attached it powers the DC/DC converter, even when I have my sled switched off. At some point when the voltage of my 12v batt drops low enough I assume the DC/DC system starts charging my 12v batt.
I figure the best solution to meet my wishes is to switch the DC/DC converter off so it doesn't help power the 12v systems and more importantly doesn't start charging my 12v battery.
Does anyone know if there is an elegant way to achieve this? I opened up the battery plate of the shadow sled to check out if it could be a simple solution but it looks quite complicated :-)
Your insights are much appreciated.
Edited by Jelle van der Does, 02 June 2015 - 07:10 AM.