Charging Auxiliary Battery from Car Cigarette Lighter or 12 Volt Auxiliary Plug Connector
Question:
Want to charge extra auxiliary 12v deep cycle agm battery while driving. I am pulling a pop up trailer with a marine battery on the tongue, but want extra power for dry camping. I have had my brake controller installed by etrailer and thought you folks could help me with this issue. Thought I could just charge the 12v auxiliary battery with a female to male cigarette lighter connector. The Subaru Outback has an a cigarette lighter outlet in the back of the car so it would seem to be an easy hook up, but doesnt a deep cycle battery require a 3 stage charge controller? Could you enlighten me on how to solve this dilemma. Thanks PS The break controller is working great. Perfect setup for my Subaru
asked by: Barbara
Helpful Expert Reply:
The 12 volt auxiliary power connections are great for charging a smart phone or running an auxiliary accessory like a DVD player, but these circuits do not have the capability of charging an auto or marine style 12 volt battery.
The auxiliary may be able to provide a small maintenance charge, but if the battery is running certain appliances while in transit, this circuit will not be able to charge up the battery.
The best solution is to use a battery charger, like # CTEK56353. This CTEK charger is designed to charge both auto and marine deep cycle style batteries.
Product Page this Question was Asked From
CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power
- Battery Charger
- Battery Charger
- Car/Truck/SUV
- Motorcycle
- Trailer
- Lawn Mower
- Jet Ski
- 150 Ah
- Charges/Maintains
- 12V
- Wall Outlet to Vehicle Battery
- CTEK Power Inc
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power
- Shop: Hydrastar Electric Over Hydraulic Actuator Adapter Module for Ford and Chevy Brake Controllers
- Shop: Adapter Module for BrakeRite Electric Over Hydraulic Actuator - OE Ford, GM Brake Controllers
- Video: Trailer Brake Controller Wire Testing
- Shop: OptiMate Smart Battery Charger - DC to DC - 12V - 2 Amp
- Search Results: dc to dc charger
- Search Results: 12 volt dc battery charger to 12 volt dc
- Shop: Rapid Gutter Feet for Thule Crossbars - Rain Gutters - 8" Tall - Qty 4
- Shop: Replacement Key for Thule Racks and Carriers - N104
- Shop: Roof Rack
- Video: Thule Crossbars Rain Gutter Rapid Gutter Feet Review
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Rhino-Rack Vortex Aero Crossbars - Aluminum - Black - 49" Long - Qty 2
- Video: Choosing the Right Trailer Wiring
- Article: Rooftop Cargo Carriers
- Shop: Trailer Hitch
- Search Results: roof rack
- Search Results: rhino rack
- Q&A: 2022 Subaru Forester Wilderness Roof Rack Recommendation
- Article: How to Choose the Right Trailer Hitch Class
- Shop: Trailer Wiring
- Q&A: Malone Roof Rack Vs. Thule Roof Rack
- Search Results: crossbars
- Article: Roof Rack Information
- Shop: Brake Controller
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Suspension Enhancement
- Video: etrailer.com Trailer Hitch Installation - 2018 Subaru Forester
- Search Results: trailer hitch