Break Away System Replacement Battery Recommendation for a Circle J Horse Trailer
Question:
Thanks for your website. I have a 1993 2 horse straight load bumper pull horse trailer. The battery for the breakaway unit sits in a little well in the tack compartment in the front of the trailer and is routinely changed every 2 years. I go to the local battery store with the old battery and just ask for a replacement, so I dont remember the specifics. Unfortunately my old battery was sitting on the edge of the counter and must have fallen into the trash. I called the battery store and was told there are all varieties of 12V batteries. There is no help on the trailer or in the manual or by e-mailing Circle J. Can you help me pick out the right battery? Is changing the battery every second year enough? The trailer is rarely used and is under cover. Winters in Oregon get down to the teens and summers to the high 90s. I appreciate your help.
asked by: Ve J
Expert Reply:
The battery that you use for a break away system needs to be able to power the trailer brakes on full for 15 minutes. A 12 volt battery rated for 5 amp hours would work but if you had 3 axles each with brakes you would benefit more from a 9 amp hour battery. Even a 12 volt car battery could be used but a battery this large would not charge up through the 12 volt circuit coming through the trailer connector.
The batteries only that we carry, # HM20008 and # TK2023 are both rated for 5 amp hours.
Every 2 years is probably fine but you can keep a battery longer if it is properly maintained. You will just need to remove the battery before storing the trailer for the winter. Then use a good battery charger like CTEK charger # CTEK56353 which will recondition a battery as well as charge it giving you the maximum life of a battery.

Products Referenced in This Question
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
- AC to DC
- 12V
- Wall Outlet to Vehicle Battery
- CTEK Power Inc
more information >
Replacement Sealed Lead Acid Battery for Shur-Set III Breakaway Kit and Tekonsha Circuit Tester
- Accessories and Parts
- Trailer Breakaway Kit
- 12V Battery
- Tekonsha
more information >
Product Page this Question was Asked From
Breakaway Kit Replacement 12 V Battery
- Accessories and Parts
- Trailer Breakaway Kit
- 12V Battery
- Hopkins
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Hopkins Engager Trailer Breakaway Kit w/ Charger, LED Tester, Hardware, and 5 Ah Battery - Top Load
- Search Results: 12 volt rv ceiling fan
- Search Results: 3801250
- Shop: BOLT brand vehicle and hitch locks
- Shop: RV Interior Lighting
- Search Results: warning triangles emergency supplies
- Shop: Warning Triangles - DOT Approved - 17-1/2" Wide x 17-1/8" Tall - 3 Pieces
- Article: Trailer Wiring Diagrams
- Shop: Suspension Enhancement
- Shop: Replacement 12V 5 Ah Battery for Bright Way Trailer Breakaway Kits
- Q&A: How to Wire Electric Brakes on a Tandem Axle Trailer
- Q&A: What is the Expected Life of a Trailer Breakaway Battery During Winter Months
- Video: Comprehensive Review: Trimax Trailer Wheel Chock and Lock
- Video: The Low-Down on the Fastway Zip Coiled Trailer Breakaway Cable
- Shop: Hopkins Endurance Multi-Tow Trailer Connector Adapter - 7-Way to 6-Way, 5-Way or 4-Way
- Shop: Pollak 6-Pole, Round Pin, Trailer Wiring Connector - Trailer End
- Article: Testing Breakaway Systems
- Search Results: lens covers
- Search Results: circle j horse trailer parts
- Search Results: clamps
- Q&A: Troubleshooting Brake Controller On 2002 Ford F-250 Heavy Duty Truck
- Q&A: What is the Difference Between Load Range C and D ST175/80D13 Trailer Tires
- Q&A: Troubleshooting Horse Trailer Interior Lights Not Functioning
- Search Results: 12v fan
- Shop: B&W Turnoverball Underbed Gooseneck Trailer Hitch w/ Custom Installation Kit - 30,000 lbs
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
- Video: Mount: TorkLift Tie Downs on a 2022 Ford F-250 Super Duty
- Q&A: Does Truck with 6-1/2 ft bed Have to Use Slider Hitch for Turning Clearance with Fifth Wheel Hitch
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: B&W Companion OEM 5th-Wheel Hitch for Ford Super Duty Prep Package - Dual Jaw - 20,000 lbs