24
FISHING FOCUSED. FAMILY FRIENDLY.™ | www.SailfishBoats.com
07/31/2018
VSR Battery System - “The Smart
Battery Switch”
04/24/2019
The VSR, or Voltage Sensitive Relay, is a very handy little box
that solves a load of traditional charging problems on marine
electrical systems. It essentially serves as a smart battery switch
deciding automatically when either one or two batteries are
charged – or discharged. It works great on almost any boat with
multiple batteries – and eliminates all of the guesswork that used
to come with manual battery switches.
What a VSR does
The VSR is installed between two batteries. Many People are
surprised to learn that it is NOT connected to either the alternator
or charger output wires! Its setup is much more clever.
It either battery goes above 13.7 volts (due to either alternator or
charger output), the VSR connects both batteries together. Both
batteries are now charging – without the boat ever having to throw
a switch.
Alternately, when the system voltage drops back below 12.6
volts, i.e., no more charging, the relay opens and the batteries
are separate. This means that both batteries now discharge
independently.
How a VSR changes real
world boating
Let’s say that a fishing boat has a two battery setup. As is often
the case, one of the batteries is dedicated to an important job –
starting the engine. The other battery is used for other operations.
As the fisherman runs the boat from hole to hole, the engine
alternator elevates the voltage to the cranking battery above 13.7
volts. This triggers the VSR to automatically connect the starting
battery and house battery together. Both are now charging.
Upon reaching his destination, the boater kills the engine – and,
the alternator output. Because of the lowered voltage, the VSR
now disconnects the batteries. Because he is now discharging
only the house battery, our fisherman is going to have starting
power when he needs it later.Once underway again, the alternator
power causes the VSR to reconnect the batteries and begins
replenishing the house battery.
Back home, the fisherman powers up his onboard battery charger,
this increased voltage causes the VSR to once again link the
batteries. This means that even a single output battery charger
would now be charging both batteries!
24
Содержание 325 DC 2019
Страница 1: ...1 FISHING FOCUSED FAMILY FRIENDLY www SailfishBoats com 07 31 2018 2019 Sailfish 325 DC 04 24 2019...
Страница 18: ...17 FISHING FOCUSED FAMILY FRIENDLY www SailfishBoats com 07 31 2018 Drain Plumbing Diagram 04 24 2019 17...
Страница 19: ...18 FISHING FOCUSED FAMILY FRIENDLY www SailfishBoats com 07 31 2018 Pump Plumbing Diagram 04 24 2019 18...