How does a voltage sensitive relay work?
The Voltage Sensitive Relay (VSR) allows two batteries to be charged at the same time. When the engine is started and the start battery reaches 13.7 volts, the VSR engages, allowing two battery banks (start and auxiliary) to be charged simultaneously.
What voltage does a split charge relay work?
They are sometimes referred to as “auxiliary” or “deep-cycling batteries” and are used to provide a steady flow of power, typically 12v, over a long period of time.
Will a VSR work with smart alternator?
Benefits of a DC to DC charger: Tip: Alternatively a VSR (Voltage switch relay) can be used with a smart alternator in a manual mode with a remote switch to control the relay.
Will a split charge relay overcharge?
Legacy split charging relays do not suffer from the efficiency, undercharging, and overcharging problems of Battery Isolators. However, these relays are susceptible to large currents drawn across the relay when the engine is started while there is a large load on depleted auxiliary batteries.
How do you test a split charge relay?
Disconnect the leisure battery , make sure the terminals are safely isolated from each other and the van, start the engine, wait a minute and check the voltage at the ends of the leisure battery leads, if you get 13. – 14 volts there the relay is working ok, switch the engine off and this voltage should disappear.
How do I know if my split charge relay is working?
Do you need a VSR If you have a DCDC charger?
Any circuit that includes an auxiliary battery that needs to be charged from an alternator source needs a DCDC charger and not a VSR. If you have a newer vehicle, run AGM or LiFePO4 batteries or any setup that is outside of the engine bay, then a DCDC charger is required instead of a VSR.
Why is my split charge relay clicking?
s, it sounds like the relay is probably trying to close (thus combining your start and leisure batteries) while the MPPT is charging your leisure battery. This would typically be due to the relay’s voltage trigger being reached – thus why it stops when you apply a load to the leisure battery.
How do I know if my relay is charging?
When the Relay is powered on, connected to the charger and is charging, the LED ring will be white-ish/blue indicating the current charge level, with the lead LED segment blinking. When the Relay has reached a full charge the LED ring will blink white-ish/blue.
What are voltage sensitive relay and split charge relay used for?
Both Voltage Sensitive Relay and Split Charge Relay are used to manage batteries in a dual battery system, which usually consist of a main battery and an auxiliary battery.
What is a relay switch on a split Charge Kit?
This relay switch set up is the most popular method used in split charge kits and is used to control the connection between the starter battery and leisure battery. Other options include: manual switches, battery to battery chargers and, split charge diode units.
What does a 12V relay do?
Description. 12V, A rated voltage sensitive relay for split charging applications in camper vans, motorhomes, 4x4s and boats. Allows charge to flow into one battery (or bank of batteries) only when a charging voltage is detected at the other battery (dual sensing operation).5/5 (24).
What is a VSR (voltage sensitive relay)?
Jul 12, A VSR (voltage sensitive relay) is perfect for dual battery systems. This diagram shows how you can use a dual sense VSR for charging both. Now, thanks to BEP’s unique VSR (Voltage Sensitive Relay) boat owners can enjoy A: It is vital to follow the wiring installation diagram which shows correct.