# VenusOS 3.90beta9: DC-DC node (testing Emergency Charging feature)

**URL:** <https://community.victronenergy.com/t/venusos-3-90beta9-dc-dc-node-testing-emergency-charging-feature/64339>\
**Category:** Node-RED\
**Tags:** beta-nodered\
**Created:** [24 October 2026 15:16 UTC](https://community.victronenergy.com/t/venusos-3-90beta9-dc-dc-node-testing-emergency-charging-feature/64339 "2026-10-24T15:16:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Goups](https://avatars.discourse-cdn.com/v4/letter/g/2bfe46/32.png) [@Goups](https://community.victronenergy.com/u/Goups)\
**Post date:** [24 October 2026 15:16 UTC](https://community.victronenergy.com/t/venusos-3-90beta9-dc-dc-node-testing-emergency-charging-feature/64339/1 "2026-10-24T15:16:29Z")

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Running 3.90beta9: Testing Emergency Charging feature.

I have two Orion XS-50  
Trying to setup a DCDC node in Node-Red,

The following boxes are greyed out, I can’t use it.

 ![Screenshot 2026-10-24 at 11.15.11](https://europe1.discourse-cdn.com/victron/original/3X/3/e/3ece771aa0522bc8b023bc3d5177d57f107811c5.png)

Using: @victronenergy/node-red-contrib-victron, _1.7.29_

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**Author:** ![nickdb](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/nickdb/32/51440_2.png) [@nickdb](https://community.victronenergy.com/u/nickdb)\
**Post date:** [24 October 2026 15:25 UTC](https://community.victronenergy.com/t/venusos-3-90beta9-dc-dc-node-testing-emergency-charging-feature/64339/2 "2026-10-24T15:25:49Z")

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Just a reminder to please follow the beta topics how to post guidelines and not to add issues to the change log.  
Nodered and signalk are large image features and are best posted in nodered and modifications respectively, using their beta-nodered or beta-signalk tags.  
I will relocate this accordingly.  
Thanks.

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**Author:** ![nickdb](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/nickdb/32/51440_2.png) [@nickdb](https://community.victronenergy.com/u/nickdb)\
**Post date:** [24 October 2026 15:43 UTC](https://community.victronenergy.com/t/venusos-3-90beta9-dc-dc-node-testing-emergency-charging-feature/64339/3 "2026-10-24T15:43:07Z")

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Made this topic public on 24 October 2026 15:43 UTC