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Unsafe 12 volt RV House Battery

Responded to request to bring two 6 volt Trojan T-105 deep cycle batteries to an RV currently operating on two 12 volt batteries in parallel.

I discovered two Costco 12 volt marine batteries wired in parallel with very small automotive wire of some sort.  And connected to the terminals without any cable eyelets.

Two 12 volt Costco Marine  Deep Cycle Batteries in Parallel

Two 12 volt Costco Marine Deep Cycle Batteries in Parallel

Two 6 volt Trojan T-105 RV House Batteries in Series

Two 6 volt Trojan T-105 RV House Batteries in Series

 

2 responses to “Unsafe 12 volt RV House Battery”

  1. Rich says:

    What is the advantage to two 6v in series over two 12v parallel?

    I am getting ready to pull the trigger this month myself!

    Thanks

  2. schwensem says:

    6 volt “golf cart” batteries have higher amp hours, can discharge deeper, have higher life cycles and usually last longer.