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 The ZM5 multi step charger can handle Bulk Absorption and Float stages with ease. The ZM5 Smart Alternator Regulator is ideal for marine/ RV motorhome/ off grid generators and other demanding charging applications

ZM5 Features at a glance

Here’s the dilemma. To charge your battery efficiently, you need a relatively high charging voltage (±14.5 V). But if you stay at that voltage permanently, you will overcharge and damage the battery.

Conversely, if you use a lower charging voltage (<14V) you will prolong the battery life but will take a long time to reach full charge – in some cases you might never actually reach full charge!

The solution is an adjustable, multi-stage voltage regulator for your alternator.

The ZM5 smart alternator regulator is ideal for marine/ RV motorhome/ off grid generators and other demanding charging applications.

People ask, “why should I bother with an external regulator”

Answer: the standard car alternator was only ever designed for a single start battery, when we add house batteries then the standard alternator just can’t cope with the extra demand

The ZM5 has recently been a product improvement of the ZM4

The motivation for updating the very successful ZM4 is to improve the reliability even better than users have experienced.

Over the 450 units produced we have analysed the failure modes and identified four items that have caused problems.

The ZM5 no longer has any of these four items.

Overvoltage and over temperature protection for various failure or connection issues are better protected in the new model.

A better design output stage uses MOSFET technology for better faster switching.

The ZM5 multi step charger can handle Bulk Absorption and Float stages with ease.