Standard alternators are not designed to be good battery chargers; they are designed only to charge an engine start battery sufficiently to start the engine. Because of this inherent design problem associated with the standard regulator, a more advanced regulator is required which in effect converts the alternators from a constant voltage power supply to the latest 4-step constant current battery charger . Because of this improvement in the alternator control system, these regulators dramatically enhance the alternator's charge rates by between 200-2000% depending on how poor the original system is.

The Sterling System is the only real time control system, which is in operation 100% of the time. This real time control ensures the high charge cycle is switched off when the batteries are full (regardless of battery bank size or state) and the high charge will automatically reset itself if after the charge has been completed and the output from the batteries exceeds the output from the alternator. Because this is real time-based, this monitoring and control is in operation all the time the engine is running. The Sterling Regulator is designed to charge batteries as fast as possible and to their maximum capacity without damage to the batteries or alternators. Therefore, we opt for the constant current charging mode and not pulse charging which would double the charge time.

What To Expect From An Advanced Regulator:

• Maintains maximum performance to alternators power curve within preset envelope supplied by battery manufactures.
• Batteries charging 4-20 times faster.
• Enables 25-35% extra useful power to be stored in batteries. A conventional alternator will only charge the battery to a maximum of about 75% and the battery voltage drops to a useless voltage of about 40%, which means that out of 100 amps of battery capacity only about 35 amps are used. An advanced regulator will fully charge the battery giving an extra 25%, which increases the useful available power by about 70%.
• Battery plates kept free from sulphate damage resulting in longer battery life.
• Due to the built in safety features in the event of incorrect installation the unit will switch itself off.
• Reduces needless running hours on the main engine.
• Compensates for voltage drops due to long cable runs, amp meters, diodes and other general wiring associated problems.
• Automatically converts machine-sensed alternator to a permanent battery sensed alternator.

SAFTEY

The Sterling Advanced Regulator has full safety features to prevent damage to your system. In the event of incorrect installation or a fault developing on the boat, the high voltage trip picks up high voltages at the batteries and the alternator and switches off the advanced regulator (the field circuit is disconnected totally from the control via an internal relay).

The Sterling Unit was the first to introduce parallel operation with the regulator, ensuring continuous alternator operation even in the event of a system failure. It is widely recognised that the best battery charger you can buy is a 3 step constant current charger. The Sterling regulator converts your alternator from an old constant voltage alternator to a modern constant current battery sensed charging alternator.

Pro Digital Universal Advanced Alternator Regulator

The Pro version offers all the features on the standard digital advanced regulator plus many new ones - the main extra features being

• remote control panel option
• extra cooling fan for larger alternators
• 12/24 volt capability

Remote Control

Price List