Renogy parasitic battery drain

[mcollo]

I've been chasing a parasitic battery drain as after leaving van for a week the starter battery will be flat.

Testing between negative battery terminal and negative lead with all doors shut ect im getting around 0.9a drain.

If I disconnect the positive cable from starter battery to renogy dc-dc 50a ip67 the drain drops to around 0.4a.

Is there a possibility I have a faulty unit or anything else I should be checking in the settings ect?

Thanks

 

[drinfinity]

Do you have an ignition live feed connected to your DCDC? If so, what is it connected to at the other end? Without the engine on the Renogy shouldn’t be taking half an amp out of the starter.

 

[Salty Spuds]

I've been chasing a parasitic battery drain as after leaving van for a week the starter battery will be flat.

Testing between negative battery terminal and negative lead with all doors shut ect im getting around 0.9a drain.

If I disconnect the positive cable from starter battery to renogy dc-dc 50a ip64 the drain drops to around 0.4a.

Is there a possibility I have a faulty unit or anything else I should be checking in the settings ect?

Thanks

How are you measuring the current drain?

 

[mcollo]

No there isn't an ignition live on this, I believe it's automatic. Wired as per diagram.

 

[mcollo]

How are you measuring the current drain?

Using a multimeter amps dc between vehicle battery negative and negative terminal