In
a dual rectifier, dual leg, dual battery (or load)
configuration, the alternator (or source) will charge
the battery (or load) that draws the greatest current.
When both loads are equal, they will both be charged
at an equal rate. Either load can be discharged independently
and current cannot pass between batteries should an
internal battery failure or load short occur.
A
common problem with conventional "marine"
or "RV" style isolators (aside from performance
issues related to the obvious voltage drop and associated
heat) is dealing with an internally regulated alternator.
Many internally regulated alternators require a battery
be connected to the alternator in order for the regulator
to "turn-on" when the vehicle is started.
When an isolator is introduced into the electrical
system, the alternator's regulator does not "see"
a battery due to the isolator.
POWER-GATE
dual rectifiers have a purpose-built circuit designed
to provide power to the internal regulator, allowing
the internal regulator to energize and power-up normally.
This 20 seconds of engineered leakage is triggered
by your keyed-on ignition and once twenty seconds
have passed, the POWER-GATE resumes dual rectification
duty as designed.
The
device is packaged in a custom vacuum-formed ABS enclosure
with full epoxy encapsulation. It requires no heatsinking,
no airflow, and is non-serviceable. Intergrated dual
LEDS indicate rectifier status for each leg. Red rubber
post covers provided to insulate primary connection
posts.
Dual
Rectifiers are rated at the following continuous current
ratings:
