roevisions said:Is it that difficult athing to add a 2nd? I presume one would have to get a mechanic to put it in? Even though me grandad used to be a master mechanic my knowledge is of how to fix humans...
http://www.arbusa.com/arb_dual_battery_systems.htmManufactured by US based Sure Power Industries – the world’s most respected supplier of auxiliary battery control devices – the smart solenoid combines the simple, reliable operation of a solenoid with sophisticated battery control capabilities. Its primary role is ensuring the vehicle’s main battery is fully charged before the second battery receives charge. It does this by monitoring the voltage of the starting battery and will only energise the solenoid and link the auxiliary battery when the starting battery reaches 13.2 volts. Conversely, the control unit disconnects the auxiliary battery when the starting battery voltage drops below 12.6 volts. This process is continuous and automatic.
If you've seen the engine compartment there is going to be plenty of space to put in the additional batteries. I would highly recommend it for winch operation etc. I would recommend the Optima series. What I am wondering is if there is enought room to put one under the driver seat. Just have to wait to see when it comes in.
The reason is voltage drop. In order to transfer the 12V to the starter and the ignition system you have to install a low resistive cable (ohms/foot). This is done through larger diameter (gauge) wires. It is just more expensive to have much thicker and longer battery cables run through a vehicle chassis when 99% of ppl won't need the battery stowed elsewhere.POS VETT said:How come nobody wants to relocate the batteries to the back ? That should help with weight distribution and keeping the batteries away from the underhood heat.