About these itemsHigh battery compatibility: Can adjust start - stop voltage and work with lithium, lead - acid, and other battery types. Some models, like those with 300A high current, are ideal for high - capacity dual - battery systems.Manual & automatic modes: Voltage - sensitive relays allow one - click switching to manual mode. A fully charged auxiliary battery can reverse - charge a depleted main battery, eliminating the need for jumper cables.Intelligent delay function: Adjustable delay time (3 - 60 seconds for most models, 15 seconds for VSR004) prevents frequent switching, extending the lifespan of the isolator and batteries.Dual voltage display: High - brightness displays show the real - time voltage of two batteries (range 4.5V - 20V), helping diagnose circuit problems.All - round protection: Features overvoltage and undervoltage protection. The isolators are sturdy, durable, shockproof, and dustproof, providing stable power for various vehicles and off - grid systems.Key DifferencesModel and current rating: VSR005 and VSR005 - 1 have a 300A current rating, VSR003 and VSR003 - 1 have 140A, and VSR004 has 80A. Higher current ratings are suitable for larger or more power - hungry dual - battery systems.Size and weight: VSR005/VSR005 - 1 (3.5 x 3.5 x 3.1 in, 0.9 lbs/7.3 lbs) are larger and heavier than VSR003/VSR003 - 1 (3.1 x 2.8 x 2.4 in, 0.5 lbs/3.5 lbs), and VSR004 is the most compact (3.3 x 1.7 x 1.5 in, 0.9 lbs).Design focus: VSR004 is designed for compact vehicles like UTVs, ATVs, jet skis, and snowmobiles, with a focus on easy integration into tight spaces.SpecificationsVSR005:Item Model Number: VSR005Rated Voltage & Current: DC 12V 300AColor: BlackMain Material: PA6Net Weight (Including All Accessories): 0.9 lbs/0.42 kgProduct Dimensions (L x W x H): 3.5 x 3.5 x 3.1 in/90 x 90 x 80 mmVSR003:Item Model Number: VSR003Rated Voltage & Current: DC 12V 140AColor: BlackMain Material: PA6Net Weight (Including All Accessories): 0.5 lbs/0.24 kgProduct Dimensions (L x W x H): 3.1 x 2.8 x 2.4 in/80 x 70 x 60 mmVSR003 - 1:Item Model Number: VSR003 - 1Rated Voltage & Current: DC 12V 140AColor: BlackMain Material: Plastic PA6 Isolator + Copper WireNet Weight (Including All Accessories): 3.5 lbs/1.6 kgProduct Dimensions (L x W x H): 3.1 x 2.8 x 2.4 in/80 x 70 x 60 mmVSR004:Item Model Number: VSR004Rated Voltage & Current: DC 12V 80AColor: BlackMain Material: Plastic PA6 Isolator + Copper WireNet Weight (Including All Accessories): 0.9 lbs/0.43 kgProduct Dimensions (L x W x H): 3.3 x 1.7 x 1.5 in/85 x 43 x 37 mmVSR005 - 1:Item Model Number: VSR005 - 1Rated Voltage & Current: DC 12V 300AColor: BlackMain Material: Plastic PA6 Isolator + Copper WireNet Weight (Including All Accessories): 7.3 lbs/3.3 kgProduct Dimensions (L x W x H): 3.5 x 3.5 x 3.1 in/90 x 90 x 80 mmPackage ContentFor all models:1 x Dual Battery Isolator Kit1 x User Manual
