Escapees September-October 2024

Large DC to DC Charger in RV

Basic DC to DC Wiring Diagram

EXAMPLE ONLY: WIRING GAUGE IS BASED ON SPECIFIC DC TO DC CHAR GER AMPERAGE AND LENGTH OF WIRE BETWEEN STARTING BATTERY AND DC TO DC CHARGER.

Where and how to install a standard DC to DC charger This unit is typically installed in your towing ve hicle or, for motorhomes/ vans, in the vehicle itself. For an example of how to install in your towing vehicle, scan this QR code to check out our video.

DC to DC Charger to maximize charging. If you connect these same batteries in series, you double the voltage (12V + 12V = 24V), but the maximum charging current remains the same at 30A. So, purchasing the 30A version of this charger would work well. But, if you have invested in a 100Ah Lithium Iron Phosphate (LFP) battery with a maximum charging current of 50A, you can use the 60A model of the charger to take full advantage of the battery’s charging potential. In this scenario, it is okay to go over the rated charge current maximum a little bit because the battery management system (BMS) can regulate the charging current to fi t its needs.

Which DC to DC Charger is best for your system?

By doing just a bit of research, you can take the guesswork out of which charger size you should use for your system. Check the manufacturer speci fi cations of your deep-cy cle battery bank (not your starting battery) to fi nd the “maximum charging current” for each battery. For example, let’s say you have 2 x 12V 100Ah AGM batteries with a maximum charging current for each battery at 30A. If they are connected in parallel, the charge currents are added together (30A + 30A = 60A), so you should purchase the 60A

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September/October 2024 ESCAPEES Magazine