Also, no need to clip the balls off the chargers because of the same reason.Ģ009 Newmar Canyon Star 3205, Ford F53 V10 No need to alarm off the inverter because the wiring is too small (3 tons post). You want to keep voltage drop in mind for the charging sources and inverter loads. I would keep the battery fuses at 100 amps each or less. The fuse will open for the unexpected.Īctually you would need to worry about the #2 (210 amps) before the pair of #4. Do you expect loads or charging to get anywhere close to 320 amps? I have doubts. That said, a very high charging current would last longer, and would be split between the two. It's not unheard of, but unlikely any charging current would be greater than a large load like a MW or a toaster. Today is my personal best for most consecutive days alive. Both batteries should use the same wire gage. Depending on acceptable voltage drop, you can probably get by with 60 or 70 amps through the #4, so you should therefore use a 60 or 70 amp fuse. The purpose of the fuse is to protect the wire. In your diagram, I see a symbol for a fuse at each of the battery + terminals but no fuse size is listed. due to aquiring a more powerful dirt-devil central vacuum (repeat inductive issue again).At this point, sure glad I had already had in place the right size cables ($$)!! 'Error' problem solved!Īfter that, I switched inverters to a 2000w (4500w surge) Prosine 2.0.
This, my planned end-all to future changes (LOL)!Īfter that, I switched to 4/0 (0000) AWG battery cable because of repeated low voltage errors when running my 6.6a vacuum (inductive load issue). But factory mounted the inverter about 18' from the batts (in rear basement), a real dumb idea.Īfter that, I switched to a 1800w sine inverter and 2/0 (00) AWG battery cable and moved the inverter to within 4' of batteries (inverter now in slide-out unit) in order to run my new X-mas coffee maker. I started out with a 1500w sine inverter and 1/0 (0) AWG battery cable, thinking that things would never need changing. My situation (due to inverter size) is different than yours, so this is only anecdotal. Understand that, in a parallel battery situation, how do you determine the largest load? Assume both batteries split the load equally? The gauge of wire is determined by the largest load that will be on that wire. That was confusing to type, so I a attaching the wiring diagram (also available in another thread soliciting comments on the overall design).Hope this does not count as double posting.just thought this specific question needed it's own thread. Should the two batteries that make up the parallel pair be paralleled with the same gauge (4AWG) wire or larger? The paralleled pair will be connected to the solar and 5th wheel systems thru a fuse and 4 AWG wire. I will be paralleling two 12 volt Group 31 AGM batteries. Topic: Gauge of wire for paralleling 12 Volt Batteries? RV.Net Open Roads Forum: Gauge of wire for paralleling 12 Volt Batteries? Open Roads Forum
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