# Best way to charge starter battery in camper van?

**URL:** <https://community.victronenergy.com/t/best-way-to-charge-starter-battery-in-camper-van/9016>\
**Category:** DIY\
**Tags:** rv, cerbo\_gx, vrm, diy\
**Created:** [25 October 2024 17:49 UTC](https://community.victronenergy.com/t/best-way-to-charge-starter-battery-in-camper-van/9016 "2024-10-25T17:49:02Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![pwfarnell](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/pwfarnell/32/2341_2.png) [@pwfarnell](https://community.victronenergy.com/u/pwfarnell)\
**Post date:** [25 October 2024 20:16 UTC](https://community.victronenergy.com/t/best-way-to-charge-starter-battery-in-camper-van/9016/4 "2024-10-25T20:16:20Z")

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The relay is on the limit, Victron do not publish data on how the current varies with voltage difference between the batteries. To date many people have discussed using the relays but there are few reports of success. One is linked below. You could search the old community archive.

[https://communityarchive.victronenergy.com/questions/79720/multiplus-aux-trickle-charge-function.html](https://communityarchive.victronenergy.com/questions/79720/multiplus-aux-trickle-charge-function.html)

The trickle charge can interfere with the Orion. There was a case a few months back showing this were an ignition wire link was added.

> [@Multiplus trickle charger issue](https://community.victronenergy.com/t/multiplus-trickle-charger-issue/2803/5):
>
> Or use a double pole switch to give 2 disconnects with a standalone LED on the intermediate section so it is not connected to either positive source when off and no voltage drop.

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