I have both - The SMART MODE VEC1093DBD 40AMP portable battery charger and a SMART MODE PD9260C converter/battery charger on my trailer. I use the 40AMP Portable charger as a backup system and for those times when I am working with one battery trying to get it back to life.
This is my OFF-ROAD POPUP battery system layout. Think I have passed this on to you before...
Works great for us when camping off the power grid just using three GP24 12VDC batteries (255AHs). We will run around 20AMPs draw from the battery bank between 8PM and 11PM each night along with the normal 1AMP parasitic draw all day long. With all the 120VAC items we want to run from an Inverter and the 12VDC items we want to run from the direct connection to the battery bank our 255AH Battery Bank DC Voltage will drop to around 12.0VDC at 8AM each morning. This is when we fire up our 2KW Honda Generator with the trailer shore power cable directly connected to the 120VAC generator plug using the appropriate RV30A-15A adapter. This will allow the PD9260C converter/charger recharge our battery back up to its 90% charge state so that we can do all of this all over again form the next day/night run off the battery.
This is my DC BATTERY PANEL monitor I use inside my trailer to monitor my battery DC voltages and the amount of DC current going both directions when the batteries are being used.
Its all in the planning to be successful. Not many cheap shortcuts you can do if you want to be successful about it...
Roy Ken
