Specifications: Surface Material: Fiberglass Reinforced Nylon Nominal Voltage: DC 12V Connection/Open Voltage: DC 13.3 V / 12.8 V Continuous Rated Current: DC 125A Intermittent Current Rating: DC 140A Power consumption: 10 mA (standby) / 330 mA (engagement) / 0 mA (storage mode) Item Size: 2.8 x 2.8 x 2.4 inches (7.2 x 7.2 x 6.1 cm). Automatically disconnects non essential loads from the battery to prevent start battery being discharged, can be manually. Not only is it capable of connecting when there is a charging source on the main battery side (alternator), it will connect if there is a charging source detected on the auxiliary battery side, such as a solar. Optional Storage Mode: If you do not need the VSR function, you can turn off the red line, connect the ON-OFF switch to control the power on and off. If you’ve been doing research and have seen a Dual Voltage Sensing Smart Relay advertised, this simply means the relay is capable of monitoring both sides of the battery system. DURABLE AND EASY TO USE: The crust is made of sturdy fiberglass reinforced nylon and provides flexibility for mounting with surface or panel mounting options. To auxiliary equipment stereo, lights, winch, etc. LED light: Built-in LED indication light (ON when VSR startup) There is also a remote LED port that indicates the status of the VSR. Ampper 12V 140Amp Dual Battery Isolator, Battery Voltage Sensitive Relay. They come in a single sense or a dual sense configuration for bi-directional charging. NVX XSBI200 Dual Sensing Smart Relay Battery Isolator Microprocessor-Controlled 200 Amp.
UNIVERSAL SIZE: Fits heavy duty modular fuse box series (BF43x) and battery switches to fit the mainstream products on the market. A VSR (voltage sensitive relay) is perfect for dual battery systems. Unique Characteristics: There is no voltage drop compared to battery insulated diodes (0.6V). Fully automatic with emergency override Features: Fully Automatic: Automatically combine two batteries when charging, separates two batteries when not charging. Thats where a dual battery isolator, kit or relay comes into play. Charge 2 batteries from the alternator When the main starter battery is fully charged, the second battery is also charged. Theres nothing quite like a flat battery to put a damper on your off grid adventure. Voltage Sensing Relay (VSR) is the best way to start dual battery vehicles all the time. The Digital Voltage Sensing Relay (DVSR) allows the charging of a second battery bank from any single charging source.