hi, i am searching for a diagram or some information on a project.
i am trying to build a discharger to discharge an 18v battery down to 13.5v and cut off at that point. i was told to use a relay inline with the resistor bank that will be carrying the load, and to also use a resistor to power the coil in the relay sized to give the coil a low voltage and release at the 13.5v. is this a safe way to make a self-powered discharger or is there a way to make it more of a solid state unit? i plan to discharge at about .9A with ceramic resistors in parallel (4x 80Ω 10watt). thanks for any information.
i am trying to build a discharger to discharge an 18v battery down to 13.5v and cut off at that point. i was told to use a relay inline with the resistor bank that will be carrying the load, and to also use a resistor to power the coil in the relay sized to give the coil a low voltage and release at the 13.5v. is this a safe way to make a self-powered discharger or is there a way to make it more of a solid state unit? i plan to discharge at about .9A with ceramic resistors in parallel (4x 80Ω 10watt). thanks for any information.