Auxiliary Power Distribution System with Dual Input Charger Wiring Diagram

Refer to this diagram when connecting the following chargers:

  • Redarc Manager30 / BMS1230S3
  • Redarc Dual Input 25A In-vehicle DC Battery Charger / BCDC1225D
  • Redarc Dual Input 40A In-vehicle DC Battery Charger / BCDC1240D
  • Redarc Dual Input 50A In-vehicle DC Battery Charger / BCDC1250D
  • Renogy DCC30S or DCC50S
  • Any other DC-DC charger with both a solar and alternator/vehicle input

Our Start and Auxiliary Battery Connection Kit includes all of the fully assembled cables, fuses, and battery disconnect switches highlighted in blue.

Battery System Wiring Diagram

Wiring Diagram Download Battery System Wiring Diagram PDF

Wire sizes and lengths should be calculated based on the requirements of your system, the sizes listed in these diagrams are examples only. When planning out your build, use our battery system current and power calculator to determine the total current and power requirements for your accessories as well as our our wire and cable size calculator and wire and cable size table for help figuring out what size wire and cable to use!

Battery System Parts List

Qty Item
1 Auxiliary Battery
1 Auxiliary Power Distribution System
1 Battery Monitor & Current Shunt
1 DC-DC Charger
1 Solar Array
1 Solar Disconnect Switch
2 Battery Disconnect Switch
2 High-Amp Fuse Holder
5 High-Amp Fuse
7 Blade Fuse
10 5/16-3/8" Ring Terminal (4 AWG)
12 ft Wire, 8 AWG, BK
12 ft Wire, 8 AWG, RD
23 ft Wire, 10 AWG, BK
23 ft Wire, 10 AWG, RD
35 ft Wire, 4 AWG, BK
43 ft Wire, 4 AWG, RD
95 ft Wire, 14 AWG, BK
95 ft Wire, 14 AWG, RD
Download battery system parts list

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