Split charge system

Thought I would do a write up of this incase it is any use to anyone. I was going to get the T-MAXX one, but it seemed like quite a lot of money for what you got, and I wanted to guarantee the ratings on cables etc.. Please point out if I have got anything wrong

I'm about 1/2 way through so far.

So I started with a Durite 140A voltage sensing relay, 2m of 110A red cable, 1m of 110A black cable, 2 strip fuse holders, some 80A strip fuses, a couple of battery terminals, and loads of the eyelet terminal things.

In total it has cost me about £65, but the relay was £40 of that.




I'm just working out where everything will go. I bought an optima yellow top, then realised that it wouldn't fit in the battery box with the current battery, so I have had to buy a red top as well :doh:

To make them both sit flat in the battery box I made a platform out of some left over stable matting that I used to line the back. The cutouts on the bottom are so the drain holes still work. Not the tidiest job, but it looks fine when fitted!




Now the batteries sit nice and flat



Next job is to make a bracket to hold them in place, and then fit it all in.

nice. couple things

why have you put on 2 inline fuses? one is enough.

relay is a bit over specced if you are sticking a 80A fuse on it.

you can do it cheaper by using a 30A voltage sensing relay and hooking it to a normal 200amp relay if you require higher loads.

durites a good brand though

trax said:

nice. couple things

why have you put on 2 inline fuses? one is enough.

relay is a bit over specced if you are sticking a 80A fuse on it.

you can do it cheaper by using a 30A voltage sensing relay and hooking it to a normal 200amp relay if you require higher loads.

durites a good brand though

Click to expand...

Weeeeel, I went with 2 fuses as that is what the kits you could by had, so guessed they were there for a reason. Thought it was a bit unnecessary, might use one for something else then.

You reckon I should fit higher amp strip fuses then?

Good idea on the cheaper relay route.

james6546 said:

Weeeeel, I went with 2 fuses as that is what the kits you could by had, so guessed they were there for a reason. Thought it was a bit unnecessary, might use one for something else then.

You reckon I should fit higher amp strip fuses then?

Good idea on the cheaper relay route.

Click to expand...

meh, it won't harm, and looks nicely done from that pic

re the 80A, it should cover it with normal use. you'll only get huge drains if you completely flatten the aux battery. (I wouldn't be surprised if you only ever got a 30A draw)

if the fuse starts blowing then upgrade it, but i think you'll be fiiine :0)

looks a nice and neat job!