Proper Balance of wiring 3 12V batteries
I have read a lot here on the importance on wiring additional batteries properly (thx pianotuna). I'm looking to wire 3 12V T1275 in parallel, and looking for how other's have physically connected 3 ...
Forum Discussion
Not clear what the inverter fuse AND the 250a fuse are for. The inverter does need a fuse on its pos wire close to the battery.
when you split the path you can fuse each wire smaller. EG my inverter could use one fat pos wire and a 300a ANL fuse or else I can use its twin wire set where it has two pos wires from the pos terminal.
so I can hook the 300a ANL to a pos battery post and run both pos wires from the inverter to that single ANL, or
I can have a 150a ANL on each pos wire and hook both ANLs to the same pos battery post, or
I could have two batteries and put one pos wire with its 150a ANL on each battery so each battery is taking about half the inverter's load.
so with the three batts to a buss, with an inverter on the other side of that buss that needs a 300a fuse for its wire, then you could put the 300 ANL on the inverter side of the buss , which now makes the "battery end" of the ANL your buss for the three battery links, or
You could have each battery wire with a 100a ANL with all three ANLs bolted to the inverter's fat wire. You would have the other branch wires terminating at that same point, each with its own size fuse.
Everything will go through the giant fuse at the battery buss but that high amp fuse is not right for the thinner branch wires, so they still need to be fused according to proper size.
In fact I am not sure about sharing fuses even though it is done. Say you have a #8 wire that needs a 30a fuse and another #8 that also needs a 30a fuse both on the way to the battery.
If you put both those #8s through the same 30a fuse does that count as both being fused? Or should you only do it by having a 30a fuse on each wire bolted to a fatter wire with a 60a fuse on it going to the battery?
when you split the path you can fuse each wire smaller. EG my inverter could use one fat pos wire and a 300a ANL fuse or else I can use its twin wire set where it has two pos wires from the pos terminal.
so I can hook the 300a ANL to a pos battery post and run both pos wires from the inverter to that single ANL, or
I can have a 150a ANL on each pos wire and hook both ANLs to the same pos battery post, or
I could have two batteries and put one pos wire with its 150a ANL on each battery so each battery is taking about half the inverter's load.
so with the three batts to a buss, with an inverter on the other side of that buss that needs a 300a fuse for its wire, then you could put the 300 ANL on the inverter side of the buss , which now makes the "battery end" of the ANL your buss for the three battery links, or
You could have each battery wire with a 100a ANL with all three ANLs bolted to the inverter's fat wire. You would have the other branch wires terminating at that same point, each with its own size fuse.
Everything will go through the giant fuse at the battery buss but that high amp fuse is not right for the thinner branch wires, so they still need to be fused according to proper size.
In fact I am not sure about sharing fuses even though it is done. Say you have a #8 wire that needs a 30a fuse and another #8 that also needs a 30a fuse both on the way to the battery.
If you put both those #8s through the same 30a fuse does that count as both being fused? Or should you only do it by having a 30a fuse on each wire bolted to a fatter wire with a 60a fuse on it going to the battery?
