Has anyone got a circuit diagram of how i could setup both my batteries to be charged via 240v hookup, possibly with a switch to select which battery to charge? ??? Many thanks in advance! You've not let me down yet! 8)
Connect your charger and both batteries into the 3 position switch on this. You will then get some fused outlets, a 12v socket and meter as well. you will be able to charge either battery and change what battery the outlets are supplied from by flicking the switch. You can mount it in a plastic box or flush it into a cabinet. I mounted mine in a plastic box from an electrical wholesaler. It's like a home made zig unit basically. http://www.ebay.co.uk/itm/Boat-Switch-Panel-3-Gang-Battery-Meter-12v-Socket-/370531799277?pt=UK_CarsParts_Vehicles_BoatEquipment_Accessories_SM&hash=item56456a90ed#ht_2292wt_689
You can just wire both battery's to the charger and put a diode into one of the wires to stop the battery's from draining each outher or just use any 2 postion switch rated at the output of your charger.
I am also wireing a dual 12v split charge but the relay needs a second 12v supply from the ignition, how do i go about finding where to wire this from?
Go of the live side of the coil, It only comes live when ignition key is turned. Saves a cable run to the front of the bus.
As said don't use the coil or you will be blowing fuses. Depending on set up alternator/dynamo external or internal regulator. you want the wire that goes to the dash warning light normally a blue or green. On the alternator or regulator find the small wire, with the ignition on pull this wire off and the dash warning light should go out.
Is that if you have electronic ignition? pulling the wire of? cause it can leave dash lights on if you go to alternator with electronic ignition? Thats why we were told to go coil. Thanks Scott.
The dash light has nothing to do with ignition. The charge dash warning light is live on one side of the bulb with the key in the on postion. The outher side of the bulb goes to the regulator (internal or external)in the engine bay and to earth so bring on the light. When the engine is running at a suitable speed the regulator switch's over and puts a Pos supply on the wire to the dash. As the bulb now has a pos on one side and a pos on the outher side the bulb goes out. You use this pos supply to switch the relay so that it is only energised when the alternator is putting out a charge. The pulling of the wire off is only to make sure you have the right wire you will need to put this back on after then join another wire to it for the relay. If you use the coil with the ignition switch on the relay is energised and when you go to start the starter will take several hundred amps from the leasure battery this is made worse if the main battery is low. if this happens the wire to the leasure battery, the relay and the battery are indanger of damage and fire. also if the leasure battery is low as soon as you turn the key on the battery's are joined and the leasure battery will be taking power form the main battery before the engine has been started.
Now I'm confused?????? So should I connect the relay to the alternator or should it be connected to the ignition circuit under the dash?
