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Old 11-08-2019, 10:49 PM   #1
joe lamel
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Wiring help

Help. We have a hc 375fl and i screwed up. Going from 1 battery to 2 (12 volt). Has no phone handy to do photo and got called away. Had one wire that is red and black and have no idea- positive or negative? This will teach me to always take photos and mark wires.
Joe lamel
(Can't blame Sherry for this one).
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Old 11-09-2019, 12:19 AM   #2
rohrmann
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In your battery area, you should find the ground/negative wire connected to the frame, which ever color that may be, so that is the one that goes to the negative terminals of the batteries. The positive cable will attach to the 12 volt breakers on the wall behind the batteries. When connecting your batteries, the positives connect together and the negatives connect together. Then, connect the negative/ground cable to the negative terminal of one of the batteries and then connect the positive cable to the positive terminal of the other battery. This is a photo of our connections, the ground cable connected to the frame with a copper lug, and the positive cable connected to the 12 volt breakers. In our rig, they used white for the negative cable and black for the positive.
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File Type: jpg 80 amp pump breaker.jpg (63.6 KB, 6 views)
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Old 11-09-2019, 09:47 AM   #3
BB_TX
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Here is an easy to understand article with diagrams. Negative wire goes to frame. Positive wire goes to auto reset circuit breakers. Should be easy to trace those wires and see where they go.

Using two 12 volt batteries you would use the parallel connection.

https://www.batterysystems.net/series-vs-parallel/
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Old 11-10-2019, 05:56 PM   #4
beeje
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Quote:
Originally Posted by rohrmann View Post
In your battery area, you should find the ground/negative wire connected to the frame, which ever color that may be, so that is the one that goes to the negative terminals of the batteries. The positive cable will attach to the 12 volt breakers on the wall behind the batteries. When connecting your batteries, the positives connect together and the negatives connect together. Then, connect the negative/ground cable to the negative terminal of one of the batteries and then connect the positive cable to the positive terminal of the other battery. This is a photo of our connections, the ground cable connected to the frame with a copper lug, and the positive cable connected to the 12 volt breakers. In our rig, they used white for the negative cable and black for the positive.
Rohrmann, got a ? for you. I just replaced the 50amp breaker with the same 80 amp breaker you pictured (wired exactly like the pic). My ? is why does the power go through the first breaker then to the 2nd one. One wire on the load side goes to the slide motor and the other to the panel (I think). Why not connect the panel feed to the first 50 amp breaker load side (eliminating the jumper) and run a new feed from the battery to the new 80 amp breaker feeding the slide motor.
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