Is DC to DC Charger Required to Protect 2019 Jeep Grand Cherokee From Trailer Battery Bank
Updated 04/11/2023 | Published 04/09/2023 >
Products Featured in This Question
Question:
I have a 2019 Jeep GC v8 with hemi and hd suspension and factory tow package towing a 2021 Tab 320S Boondock. I have installed two 12V 105Ah Lithium Iron Phosphate LiFePO4 Batteries. I have a 105 watt solar panel on roof of trailer with a solar controller inside also. Do I need a DC to DC charger as well? I wasn’t sure about any impacts to Jeep’s alternator. Thank you.
asked by: Kelly R
Helpful Expert Reply:
The alternator on your 2019 Jeep Grand Cherokee will be just fine and will provide a trickle charge to the battery bank on your trailer, but if you're wanting your Jeep battery to actually charge the bank on your trailer then you will need a DC to DC charging setup and for that I recommend the Redarc BCDC:
- 40 Amp Redarc In-Vehicle BCDC Battery Charger # 331-BCDC1240D
I like this solution because it's smart enough to adjust the charge power per battery bank and battery type, plus it has a connection for solar panels so they can be integrated together (although you'll need to ditch your current solar panel controller). If you choose to go this route be sure to use these heavy duty fuses # 331-FK60 as well as thick wiring since this will be focused on pushing 12V power through for charging.
I've attached a review video of this charger for you to check out.
Product Page this Question was Asked From
Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 40 Amp
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- 12V
- Charges and Maintains
- AGM
- Calcium
- Gel
- Lead Acid
- Lithium
- Solar Panels to Auxiliary Battery
- Vehicle Battery to Auxiliary Battery
- Smart Charge
- Trickle Charge
- Redarc
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Vehicle Tow Bar Wiring
- Shop: Base Plate for Tow Bar
- Shop: Roadmaster Direct-Connect Base Plate Kit - Removable Arms
- Shop: Trailer Wiring
- Q&A: Can You Overcharge Your RVs Battery While it is Being Towed
- Q&A: Does Crossbeam of Roadmaster Base Plate Kit # RM45EQ Provide Support
- Q&A: Is There Plug and Play Tow Bar Wiring That Fits 2024 Ford F-150
- Search Results: 6 pin socket
- Search Results: towed vehicle battery charger
- Search Results: trailer breakaway switch
- Search Results: towed vehicle charger
- Search Results: flat tow wiring harness
- Search Results: roadmaster tow bar base plate
- Search Results: towed battery charger
- Shop: Curt Custom Tail Light Wiring Kit for Towed Vehicles
- Shop: Replacement Breakaway Switch for Bright Way Trailer Breakaway Kits
- Shop: Curt Universal Tail Light Wiring Kit for Towed Vehicles - 4-Way Flat Connectors
- Shop: Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 25 Amp
- Shop: Hopkins Custom Tail Light Wiring Kit for Towed Vehicles
- Shop: Curt Custom Tail Light Wiring Kit for Towed Vehicles
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Video: An In-Depth Look at the Roadmaster Battery Charge Line Kit for Towed Vehicles
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Video: An In-Depth Look at the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Suspension Enhancement
- Q&A: Replacing 6-Way on Trailer With 7-Way Connector
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown


