How to Charge a Trailer Battery for Use with a Bulldog Jack
Question:
If I understand what I have read it is better to mount a battery on the trailer to run the jack rather than wire it through and to avoid overheating the 7 way plug. Would it then be reasonable and safe to keep that battery charged through the 7 way plug? Also, would it be safe to keep the battery in a box inside the cargo trailer instead of outside? Thanks,
asked by: Keith W
Expert Reply:
What you described is actually the best solution!
Connecting your battery to 12V Power wire from the 7-Way on your trailer is a great way to provide a maintenance charge on your battery to operate a Bulldog jack like part # BD500199. Mounting a battery inside a box like part # 329-HM300BKS inside your trailer will further help to keep your battery safe from the elements (although battery boxes do a pretty good job at that).
Please note that the 12V power from your vehicle will not necessarily charge your battery, it will just help to maintain it. You can either use a battery charger like part # CTEK56353 to recharge your battery when an AC outlet is present, or use a battery charger like part # 331-BCDC1240D along with a solar panel like part # PTW2997 to help charge your battery in addition to the 12V power maintenance from your your tow vehicle.
I have attached a picture showing how the second method would be installed for you to reference should you decide to go that route.
Products Referenced in This Question
Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 40 Amp
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- 200 Ah
- Charges/Maintains
- 12V
- Solar Panels to Auxiliary Battery
- Vehicle Battery to Auxiliary Battery
- Redarc
more information >
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 >
2.5-Watt Solar Battery Charger
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- Charges Only
- 12V
- Solar Panels to Auxiliary Battery
- Performance Tool
more information >
Product Page this Question was Asked From
Bulldog Powered Drive Trailer Jack - Drop Leg - A-Frame - 22" Lift - 4,000 lbs - Black
- Camper Jacks
- Pop Up Camper
- Teardrop Camper
- Travel Trailer
- A-Frame Jack
- Leveling Jacks
- Tongue Jack
- Steel
- 3001 - 4000 lbs
- Electric Jack
- 22 Inch Lift
- Bolt-On
- 1 Jack
- Bulldog
more information >
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