12v wire thickness
I have a 2kw inverter and will be getting a 100a converter for my 2 100ah lifepo4 batteries. Currently I'm just using whatever ga wires came with everything (a bix of 4/6/8). I am planning on chang...
Forum Discussion
Grit dog wrote:ktmrfs wrote:
go to a welding shop and buy the length of welding cable in the gauge you want and have them put logs on it for you. Many shops can do that.
Otherwise you'll need a hybraulic crimper. And based on what I've done I'd suggest and least 2/0 wire if not 3/0. Most inverters have a low voltage shutoff and a few tenths of a volt drop can make the difference in inverter running and inverter shutting down.
And make sure you use the correct fuse to the inverter. they are big, bulky but meant to protect under the high load conditions.
Welding cable has lots of very fine wire so it is very flexible and easy to route.
OP, you don’t need anything elaborate like having cables prefabricated or a hyd crimper.
You can buy any number of clamping or solder/crimp lugs that can be attached with basic hand tools. But you “can” make elaborate cables if you wish.
Regarding wire size, the responses are all over the board here. Many who just think bigger is better. (It is, but doesn’t mean it’s necessary) I used a wire size calculator real quick to provide my recommendation. You should do the same. You have the data. It’s that easy.
around here welding cable is very reasonably priced, pay by the foot, lugs are sold individually and the shops I deal with will crimp for free if you buy the cable and lugs. makes it easy peasy, and quick. And usually cable is available in red or black, from AWG 6 down to 4/0. Quick, easy, affordable and your good to go.
