Does a Breakaway Switch Require a Separate Battery

Published 09/27/2018

Question:

hello how is that with an older Trailer 1994. who had no separate battery yet. except the big one on the drawbar. it is enough to put them under power again. to reactivate them.

asked by: Robert

Expert Reply:

I am not entirely sure I understand your question. In regards to a breakaway system, the switch needs to have a separate battery for power according to most state regulations. You will need to check with your state's DOT but it is safe to assume you will need a separate battery for the breakaway switch. The seperate battery is not needed because of the amount of power pulled through the switch but rather as a backup in case something were to happen to the trailers main power source. The 12 volt pin on the vehicle's 7-way will be used to charge the breakaway battery.

If you need a breakaway battery then it may just be best to purchase a new kit for which I recommend the Hopkins Engager Push-To-Test Trailer Breakaway Kit part # 20099 as the push to test battery feature is very handy and it is rather cost effective for what is included. I have also attached a wiring diagram of the system for you as well.

expert reply by: Conner L