Longest interconnect battery cables?
What is the longest interconnect battery cables I could use between two 6v batteries wired in series? I have a prowler travel trailer and in front there is a large cover over the propane tanks, on eit...
Forum Discussion
I agree with PAUL that you will need the cable connection between the two 6VDC batteries be as big as you can deal with. However a 4/0 cable is going to be a pretty large diameter and will be difficult to use. You will have to have your two 6VDC batteries mounted very stable and the large diameter cable installed in good manner to not cause stress on the battery terminals. The large diameter cable may easily rip the 6DVC terminals right out of the cheap plastic battery case.
Your two 6VDC batteries will give you around 220AHs of capacity and more important will produce around 25AMPS of 12VC current for 7 hours before discharging the two batteries to around 10.5VDC (0% charge).. You of course really don't want to drop your batteries below 12.0VC (50% charge state) to keep from doing damage to the batteries.
To get roughly the same results from two each 12VC batteries installed in parallel the TroJan T1275P 150AH batteries might be a good alternative. These two batteries will have a 300AH capacity and produce 25AMPS @ 12VDC for around 9 hours before getting down to the 10.5VDC (0%) charge state.
Using the 12VDC BATTERIES will allow you to use 4AWG or 2AWG batteries interconnect cables which will be easier to work with.
The difference is going to be cost of the batteries as the availability of the GC2 6VDC 220AH capacity golf cart batteries is around $80-$90 each. The Trojan T1275 batteries will probably run you around $190-$225 each.
Check the battery specs and get the ones that give you the most AH capacity and the best output performance rated in DC AMPs and minutes.
Just passing along for your food for thought process...
There are a bunch of GC2 6VDC batteries installs in the RV community these days...
Just my thoughts
Roy Ken
Your two 6VDC batteries will give you around 220AHs of capacity and more important will produce around 25AMPS of 12VC current for 7 hours before discharging the two batteries to around 10.5VDC (0% charge).. You of course really don't want to drop your batteries below 12.0VC (50% charge state) to keep from doing damage to the batteries.
To get roughly the same results from two each 12VC batteries installed in parallel the TroJan T1275P 150AH batteries might be a good alternative. These two batteries will have a 300AH capacity and produce 25AMPS @ 12VDC for around 9 hours before getting down to the 10.5VDC (0%) charge state.
Using the 12VDC BATTERIES will allow you to use 4AWG or 2AWG batteries interconnect cables which will be easier to work with.
The difference is going to be cost of the batteries as the availability of the GC2 6VDC 220AH capacity golf cart batteries is around $80-$90 each. The Trojan T1275 batteries will probably run you around $190-$225 each.
Check the battery specs and get the ones that give you the most AH capacity and the best output performance rated in DC AMPs and minutes.
Just passing along for your food for thought process...
There are a bunch of GC2 6VDC batteries installs in the RV community these days...
Just my thoughts
Roy Ken
