24V /7 pines connector of a trailer

[jor1492]

Hello all,
My question is I have a truck with a system of 2 batteries of 12V and I want to know if I can connect it to a tráiler connector of 7 pines of 24V for my brake system?
Can they match?

thanks in advance.

 

[aap2]

How much current is the brake system going to draw from the batteries?

 

[aap2]

If you connect the batteries in series to make 24 it should match. A trailer connector usually has a 12 V connection, so why do you need 24 volts?

 

[jor1492]

thanks plazma by the answers, but I could resolve the problema.
The issue was that I had an american truck model and I had in fabrication an european/asian tráiler, so the european/asian trailer use a system of 24 volts. The solution just was change the european/asian 7 pines connector by an american 7 pin connector, where the only difference is in the voltaje.