Which side of the ePRO+ do I connect my chargers and loads to?

The ePRO+ features a shunt with two M8 studs on it. If you look top edge of the shunt, you will notice that one side of the shunt reads "BATTERY" and the other side is marked "SYSTEM" (see the image below). In order for your ePRO+ to function correctly, it is absolutely essential that only the negative battery cable be connected to the "BATTERY" side of the shunt and that all other negative cables be connected to the "SYSTEM" side of the shunt.

The ePRO+ is able to calculate how full your battery is by measuring the flow of current across the shunt. If you connect any loads or chargers to the "BATTERY" side of the ePRO+, the flow of current to or from these devices will bypass the shunt and not be measured by the ePRO+. Without the ability to measure the flow of current across the shunt, the ePRO+ will eventually fallout of sync with your battery and give you an inaccurate reading of its state of charge.

If you have trouble fitting all of the cabling from your system to your ePRO+, then it is recommended that you install a bus bar to the system side of the shunt. While this can be accomplished with any high quality bus bar and cabling, Enerdrive offers a range of DC Modular bus bars and fuse holders designed for easy installation. For more information on the Enerdrive DC Modular series of products, click here.