Now you can use the run and gun charger and not worry about voltage issues. This regulator will produce a steady clean voltage of 16.4 all day long even when hooked up to a charger.

This is a must for Lowrance units that cap their head units at 17.0 volts. Unit can handle up to 15 amps of equipment draw. Use of 2 regulators is required if hooking up more than 3 power connections to it.  New yellow wire is switch power and it is to be installed on output of a switch so that when you turn on switch it will also turn on regulator. This will also allow for unit to power down after switch is turned off. 

This unit is not to be used for any voltages over 18.25 (not to be used on 24v or 36v systems)