What the thread found

• The most common cause is a 12V cable routed to the camera instead of a 24V cable; many Alexa Mini and Amira cables supply 12V via hot-swap connectors, while 24V appears on a different pin of the sled connector.
• The three-pin output on the M2 carries ground on pin 1, 12V on pin 2, and 24V on pin 3.
• Secondary causes include incorrect battery type or undervolage threshold configured in the camera menu, and undersized cable gauge, which some cable manufacturers overlook.
• Adding more batteries in parallel increases runtime but does not raise voltage; the Alexa 35 draws approximately 140 W and requires adequate conductor cross-section to sustain 24V delivery under load.

Depends on

• Whether the issue stems from incorrect cable routing, camera settings, or insufficient power capacity depends on systematic testing with a known 24V cable and a multimeter check at the camera input.

Gear in this thread

ALEXA 35catalog

Same gear or parts

1. 2026Low mode and flipping the image: what to check on the camera before the dayOperator practice
2. 2026Mounting the RIA-1 wireless receiver on ARRI Trinity with ALEXA 35FacebookArri Artemis Trinity
3. 2026Swapping an ARRI ALEXA 35 between tripod/studio and Steadicam® mounting: baseplate choice and fastest workflow.FacebookSteadicam operators group
4. 2026Eliminating vibration with the ARRI ALEXA 35 on Steadicam®: rigid mounting plate options to bypass the dovetail systemFacebookThe Steadicam Group