tonite the trailer lives outside in Oakland, CA (in our cul-de-sac) . We have a big ugly tongue lock that a bolt cutter cannot defeat. Since I do have a 100AH battery inside the camper, I was thinking of pulling the breakaway switch (removing the pull unit completely) and leave the brakes energized overnight. Ifta thief wants to chain up the tonge and tow it away - I don't want to make it easy for them at 3.2 amps each magnet, thats 6.4 amps total. My Renogy bettery has 100AH capacity which is 15.6 hours. If I pull the breakaway switch before I retire the battery still has a good charge when I arise and check to see if the trailer is stil lthere !! FWIW - I am one person who has had his 4x8 utility trailer stolen from the street - on the other side of the fence in front of our bedroom window. They used a bolt cutter on the padlock. So I know that there are folks out there in the market for a trailer. AND One of our up-the-hill neighbors had their tongue-locked (and a wheel lock) very nice ($$$) teardrop stolen from curbside in front of their house. Any comments??