Optimal division of charge
current over multiple batteries
Mastervolt offers several intelligent solutions:
Battery isolators that divide your charge current
with a minimum energy loss.
The Charge Mate for connecting and/or
disconnecting two batteries.
Battery Watch for monitoring the condition of
your batteries (also usable as main switch).
Complete range for
battery isolators for conventional
systems with an alternator or battery charger
and two or three batteries.
battery isolators with a negligible
voltage drop; most suitable for charging multiple
batteries, possibly with various brands of
alternators, even if their charge voltage cannot
be adjusted. Ensures high efficiency and
negligible energy loss.
for switching two batteries in
parallel while charging.
battery switch with protection
against overvoltage and depletion of the battery.
Charging two or three batteries
at high capacity
The Battery Mate is ideal for alternators with
a maximum charge current of 160 A or 250
A. It can charge two or three batteries with a
very high yield and without voltage drop.
Robust and Durable
Completely corrosion-proof material with
aluminium heat sinks. The electronic
components are encased in synthetic
materials, the BI models have molded diode
Safety guaranteed: The Battery Mate LED
display indicates whether the power input
The synthetic end plates feature connection
lugs, the solid bolt connections with nuts
and locking rings ensure easy installation.
Compact and Lightweight
The Mastervolt BI battery isolators are
compact and fully solid state, preventing
wear. The weight varies from 580 to 1300
Onboard systems usually consist of two or more batteries that function independently
when powering the 12, 24 or 48 V consumers. These batteries require independent
charging with reliable battery isolators or battery combiners.