About Us

Graeme Polley designed and built the ZM4 smart alternator regulator for his marine application in 2004. Over 400 ZM4 units have been produced since.

In August 2019 the ZM5 had gone into production with improvements in design, we now have 200 in the market.  A total of 17 years’ service of our smart regulator range.

We have continued to add value to the product with the release of the ZM6 unit

My professional background is in aircraft engineering, but one of my passions is boating. After experiencing battery charging problems in my own launch and suffering the premature failure of one too many batteries, I started researching why.

It was a local battery manufacturer here in New Zealand who tipped me off about the problems that arise from using automotive alternators in a marine vessel designed for heavy loads such as anchor winches and bow thrusters or huge house batteries running overnight services. This must be a well kept secret because alternators configured for cars seem to be extremely common in boats!

I then started researching the solution: ‘smart’ voltage regulators. But I found the cost prohibitive. Using true Kiwi ingenuity, my scientist son and I decided to just do it ourselves. Together we designed and built our own unit, intended for our own personal use. And it worked perfectly.

Shortly after, friends with boats discovered what I’d made and I soon found myself making ones and twos for friends.

As a hobby venture for me, it provides a wonderful opportunity to meet people from all walks of life, learn what they’re doing and help them solve their battery problems.

I’m sure you’ll find that the Smart Alternator Regulator does a fine job for you, as it has in my own launch since 2004.

I have since sold my launch and have a motorhome.

Today I have electronic mentors and consultants to help with design matters.

Graeme currently runs an aviation business, Aero Consult performing accident investigation, valuations and aircraft and helicopter pre purchase inspections.


Graeme Polley