# Battery isolator CAN messages

**URL:** <https://community.ecumaster.com/t/battery-isolator-can-messages/3872>\
**Category:** OTHER DEVICES\
**Created:** [June 15, 2025, 5:57am UTC](https://community.ecumaster.com/t/battery-isolator-can-messages/3872 "2025-06-15T05:57:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![type0](https://avatars.discourse-cdn.com/v4/letter/t/65b543/32.png) [@type0](https://community.ecumaster.com/u/type0)\
**Post date:** [June 15, 2025, 5:57am UTC](https://community.ecumaster.com/t/battery-isolator-can-messages/3872/1 "2025-06-15T05:57:19Z")

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Is it possible to get the Battery Isolator voltage through a CANbus message?

I would like to use the voltage detected at the battery isolator to control the charging function of my ECU. It would use the voltage at the isolator to send a duty cycle output to the alternator.

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**Author:** ![ProperTuningOG](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/propertuningog/32/3481_2.png) [@ProperTuningOG](https://community.ecumaster.com/u/ProperTuningOG)\
**Post date:** [June 15, 2025, 7:38pm UTC](https://community.ecumaster.com/t/battery-isolator-can-messages/3872/2 "2025-06-15T19:38:34Z")

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Yes, you can export the DBC in LightClient for isolator messaging.

With isolator loaded or live, be sure its selected and click more. There you can find the export options.

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/4/4bbfae2aaf79ddfaa5ca5b6bd50acb99c56017ea.png)

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**Author:** ![type0](https://avatars.discourse-cdn.com/v4/letter/t/65b543/32.png) [@type0](https://community.ecumaster.com/u/type0)\
**Post date:** [June 15, 2025, 8:37pm UTC](https://community.ecumaster.com/t/battery-isolator-can-messages/3872/3 "2025-06-15T20:37:23Z")

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That is brilliant! Gonna try it now. Thanks!