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path1's avatar
path1
Explorer
Jun 11, 2016

How many amps at controller and brakes magnets?

Trailer brakes are getting weak. I already pulled the brake drums and don't see any grease on them. I adjusted brakes shoes and no improvement to stopping. Don't know how old brake controller is. ...
grizzzman's avatar
grizzzman
Explorer
Jun 11, 2016
dougrainer wrote:
Old-Biscuit wrote:
At full battery voltage........3 amps per magnet


To expand. Trailer brakes work off VOLTAGE, not amps. You activate the amount of braking by the amount of voltage to the brake Magnets.
1 volt--minimum. 12 volts or higher--- locked up. That is what the Brake controller controls. Doug


No amps no stop period. Volts decide how many amps.......

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