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Alternator Smart Regulator Brand new item

  • No reserve No reserve 
  • Closed: Wed 12 Sep 2012, 6:48 pm
Listing #: 511054074

The traditional automotive alternator is fitted with an internal regulator designed for automotive use. This requires the replacement of a relatively small amount of discharged power within a short time. As a result, few marine batteries are ever charged much over 70% of capacity.

For a lead acid battery to be fully charged it must reach a voltage of 14.4volts (gassing)
Automotive alternator regulator systems never achieve this point.

An automotive alternator with an internal regulator only produces 13.8 volts on a cold installation, once the alternator/engine gets hot (heatsoak) the voltage drops

Further, automotive alternators were never designed to charge large house batteries and to experience big loads like anchor winches and bow thrusters. Charge voltage is probably the most important factor in charging, as all other factors are related to it.

This unit will switch up to 8 amps on the field side, most alternators require 3-4 amps, therefore capacity is unlimited output provided field does not require any greater than 8 amps

ZM4 Features include:

Adjustable voltage settings for different battery types Lead acid / Gel/ Nicad

3 step charge regime

Reliable solid state components used.

Easy to install

12 month warranty, we will repair or replace free of charge.

Can be configured for 24volt, on request ($120)

Size: 160mm long x 65mm high x 68mm wide.

Note: Modification of your existing alternator to accept an external regulator is a requirement and can be done by yourself or a reputable auto electrical shop.
You will need to run a wire from the ZM4 to the alternator.

Full installation instructions provided and I am willing to assist anyone with installation questions.
See actual running performance at://­rig

To download an installation manual go to:
Note: will not work if you paste into Google

Shipping details

  • $5.50  Track and Trace Courier
  • Seller allows pick-ups
  • Seller location: Hamilton, Waikato, NZ

Payment details

  • NZ bank deposit
  • Cash

About the seller

grips4227 (341 341 positive feedback) Address Verified May 2013 Member is In Trade
  • 99.4% positive feedback
  • Member since Aug 2004

Closes: Wed 12 Sep, 6:48 pm. 2012