This is a direct starter battery connection. You want these secondary batteries to be separated electrically from the alternator when the motor is not running.
Installing A Battery Charged By The Alternator In A Sprinter
Adding second battery to sprinter. It is also handy to add a battery gauge as well so you can access the strength of your auxiliary battery. The benefits of this system over a solenoid combiner or dc to dc charger are that you arent limited to 40 amps of current so you can charge any size battery of any type. For cost and practical reason we recommend to order this option directly from the plant. You can buy fancy electronic battery isolators for prices up to and over 100. In the middle is a stud with a redgrey wire. It has a 10a 120w maximum current draw.
When installing electrical aftermarket equipment with an amp draw of more than 25a in mercedes benz sprinters freightliner sprinters it is necessary to use the optional aux battery 12v100ah code e28. The first step to powering up your van camper is to install secondary batteries that are charged off your vans alternator. Most lithium batteries should not be charged when they are below freezing point. On the left is a stud with a blueyellow wire. Starter engine battery connections on the sprinter. This provides power when the engine is running terminal d.
Second if youre replacing it with a lithium battery the location under the hood is likely to see more extreme temperatures than a location inside the vehicle. Dual battery systems generally consist of a deep cycle battery a battery box voltage sensitive solenoid 15 25 feet of heavy gauge 8 gauge or heavier wire and a couple of fuses. It involves adding a second alternator on a bracket in the engine bay and running wires from that second alternator into the van or to wherever the extra batteries are. Third is the relay capacity. I would like to add a bigger battery offering more amp hours but not sure if i have to pair the battery with a similar sized one or if i should replace this battery and convert to a 6v system. This is probably why my battery is dead in the morning so i want to add a second battery.
Its designed to carry currents for a 100 ah battery charging circuit.
Gallery of Adding Second Battery To Sprinter
