My DC-DC is not producing its full power

[King76]

Hello,

I plugged a Renogy 40A DC-DC into my van but it only deploys 20A, why?

However, I did not use the DCDC limiter. On the other hand, in this van, there is only one cable coming from the battery (positive). For neutral I connected to earth.

Could it come from there?

Thanks

 

[abnorm]

What vehicle ?

I did not use the DCDC limiter.

To What are you referring ?

 

[King76]

What vehicle ?

To What are you referring ?

Econoline E-250.

I think I may have found the answer.

I check the value from my battery's mobile application. Two batteries in parallel, one indicated 20A and the other 18A.

Should we add the values?

Merci

 

[Happy Camper]

Welcome to the forum.

It really helps to have more information to understand the context and situation.

 

[wayne49]

Could be the receiving whatever, can only take/needs 20A.

Like McD's would like me to eat five Big Macs at a sitting, but I only want one. [Haven't been to McD, BK, etc. since the 22nd Century.]