Iv got a hella split charge relay and just wanted to ask what wire to run the switch from, iv read the threads on hear and people have said the battery warning light on the dash, but not sure where that is in the bus (some say it runs from the alternator other from the regulator), could someone give me an idea please. Also what amp rating wire should I run from the battery to the fuse box, should I just run a 35amp wire?
Right side of firewall is the regulator for the alternator, the wire on the left of the plug is the one for the warning light you can use that. Test it first, it will only be live with the engine running
Cheers all, I'll have a look at all that and try that wire. So any suggestions on the amp wire from the leisure battery to the fuse box
if you mean what cable size would you run from the LB to supply a new fuse box... 6mm^2 will be big enough for everything you'd run off an aux battery IMO unless you're powering a hungry sound system, plus fridge, plus other stuff simultaneously
The wire is bluey/green if i remember correctly. I used Vanorak's diagram after a few hours of me having a go myself trying to figure it out and it worked first time. Take your time and when its fitted tidy all the cables and mount your relay out of trouble and you will never have to play with it again. As for the fuse box - if you havent got one yet i suggest a switched fuse box - that way you can kill things easily if you need to save power. I havent got one so I have to pull out fuses or spade connectors if Im parked up and dont want the leisure to drain. Hope thats helpful
Not my diagram....stolen from Goatboy.........he may have stolen it from somebody else but it's the easiest diagram I've seen for basic split charge set up on a bus
That’s a good, easy to understand diagram but in my opinion a 10 amp fuse isn’t enough between the relay, main and leisure batteries. If the leisure battery is discharged the current rush as the relay closes could easily blow a 10amp fuse. I’ve used 40amp fuses, an 80amp relay and 7mm2, 50amp standard cable (6mm2 thinwall cable could be used instead). Incidentally, I’ve mounted the relay where the redundant diagnostic socket was and run the cable to the leisure battery in the existing clips for the tail lamp assembly wiring.
http://thelatebay.com/index.php?threads/leisure-electrics-12v.5390/ I would use 35amp cable fuse sizes as per the link
2.5mm for the charge wire according to my wiring diagram, with a 16 amp fuse. Far too weedy for my liking.
Cheers guys, nearly done now with the instillation, just want to ask What amp do you think the wire from the relay to the leisure battery is?. Iv cut so much of it of and have enough left over I was thinking of using it to run from the leisure bat to fuse box inside, but don't want to if it can't handle the applications. If it's not good enough, will any old 6mm2 wire do? (It's been a real pain in the ass getting hold of high amp wire locally, or any auto electric parts to be honest both halfords and sc motor factors have nothing)
What items will you running from the leisure battery? Add up all the loads (in amps), which will help size the cable needed for the feed to the fusebox. 6mm2 is a fairly safe bet - it will cope with approx 50 Amps continuous. 6mm2 is also the largest wire size you can crimp into a yellow pre-insulated terminal (ie ring / spade terminal). Anything larger needs different crimps and a larger crimping tool. For all your Vehicle Wiring needs, try: http://www.vehicle-wiring-products.eu ...other suppliers are also available.
Sorry to butt in but seems there's some knowledge here I've got a leisure Battery that's charged via a Durite intelligent Spilt charge relay. The problem I have is it can't seem to fully charge the leisure battery. The leisure battery also can't run an inverter or my 12v fridge. Runs my lights, stereo/amp fine tho. Any ideas??? Thanks & sorry for the hi-jack.
How big is the LB? What does your alternator put out in amps? What type of fridge do you have? What is the wattage of your inverter? How long do you run your appliances? (what are they & what do they draw in either watts or amps) How long do you run your engine to recharge? Soz for questions but all are relevant in order to manage power efficiently. Of course the LB may just be knackered
It's a 95Ah Battery 12v fridge 150 Watt inverter (works in the car) I hardly use any of the lights & stereo is only on when were driving really. The set up is 4 x 10 watt lights 1 stereo with 200 watt amp (not used when stopped) 1 x 12 volt socket The battery is brand new as this is an on going problem. I fully charged it for the weekend & by Friday night (only been away from home for 6 hrs) the battery was half gone. Even when the battery is fully charged the inverter LED comes on but won't run anything & the fridge won't work. Cheers
