Designed for use in applications requiring balanced charge control from two alternators and two regulators on twin engines, the Centerfielder-II makes it possible to utilize the combined output of both alternators to supply optimized charging to a single large battery bank. By monitoring the ignition and field voltages at port and starboard regulators, the Centerfielder-II determines when both engines are running, and directs field current from the master (starboard) regulator to both alternators. By controlling both alternators with the same field source, the Centerfielder-II ensures that alternators can work together to ensure optimal charging at a single large battery bank.
The Centerfielder-II is easy to install. You will find, included with the Centerfielder-II, a collection of wiring terminal connectors as well as two fused 12-gauge RED wires required to replace the standard 14-gauge (RED) power wires in the Max Charge regulators’ wiring harnesses. Use wire size calculation in alternator manual to determine required wire size based on the length of wire run needed to connect charging system components. To install: 1. Disconnect batteries or turn battery switches to the OFF position. 2. Install the Centerfielder-II on a bulkhead or other flat surface that’s away from extreme heat or moisture. Typically, the Centerfielder is mounted close to one or the other voltage regulator. 3. Determine the distances and gauges required for wire runs between the Centerfielder-II, the Max Charge regulators and the port and starboard alternators. 4. Connect the supplied wiring connectors to their appropriate wires, as described to the right, and connect to the Centerfielder, regulators and alternators as shown. 5. Remove the existing RED power wires from the Max Charge wiring harnesses and replace with the included, fused RED 12-gauge wires. 6. Re-connect batteries and start engines. Indicator LEDs will light as the Centerfielder-II controls field output from the regulators to the two alternators.