- High Battery Compatibility: Our dual battery isolator kit can adjust start-stop voltage, compatible with lithium, lead-acid and other battery types. No compatibility worries, it provides optimized charging experiences to maximize battery lifespan
- Manual & Automatic Modes: No more breakdowns! This voltage sensitive relay enables one-click switching to manual mode, letting your fully charged auxiliary battery reverse-charge a depleted main battery. No jumper cables needed—start the vehicle instantly
- Intelligent Delay Function: With an adjustable delay time of 3-60 seconds, this VSR isolator effectively avoids frequent switching, significantly extending the service life of the isolator and battery
- Dual Voltage Display: The high-brightness display shows the accurate voltage of the two batteries in real time (range 4.5V-20V). Our 12v split charge isolator kit can easily diagnose circuit problems and confidently master the system status
- All-Round Protection: Featuring overvoltage and undervoltage protection, the dual battery smart isolator is sturdy, durable, shockproof, and dustproof. It provides stable and reliable power for your RV, truck, boat, or off-grid system. Package includes: 1 x 140A smart lithium battery isolator (with mounting screws), 1 x 20 ft (6 m) 6 AWG red cable, 1 x 2 ft (0.6 m) 6 AWG black ground cable, 3 x pure copper connectors, 2 x heat shrink tubing, 4 x cable lugs, 6 x zip ties
- Item Model Number
- VSR003-1
- Rated Voltage & Current
- DC 12V 140A
- Color
- Black
- Main Material
- Plastic PA6 Isolator + Copper Wire
- Net Weight (Including All Accessories)
- 3.5 lbs/1.6 kg
- Product Dimensions (L x W x H)
- 3.1 x 2.8 x 2.4 in/80 x 70 x 60 mm
High Compatibility with Lithium and Lead-Acid Batteries for Optimized Charging
The VEVOR 12V dual battery isolator kit can work with many types of batteries. The isolator automatically adjusts the start and stop voltages, so you don’t have to worry about compatibility issues.
You’ll see how simple it is to link different kinds of batteries. This kit gives you a consistent, optimized charging experience whether you switch to lithium batteries or keep using lead-acid batteries. It ensures that all batteries have the right amount of power so your system or car is always ready to go.
12V Dual Battery Isolator Kit with Manual & Automatic Modes for Flexible Battery Management
You can switch between manual and automatic modes whenever you need to with the VEVOR 12V dual battery isolator kit. When you set the system to automatic mode, it charges your batteries and keeps your main and backup batteries in balance without you having to do anything.
You’ll find the manual mode very useful in an emergency, on the road, or when you’re away from the power grid. You can decide how much power goes to each battery with just one click, so your main battery will never die on you. The different operating modes give you full control over your energy system and protect your car’s electrical components.
12V Dual Battery Isolator Kit: Intelligent Delay Function with Adjustable Time of 3-60 Seconds
This 12v dual battery isolator kit features a clever delay function that lets you set the delay between 3 and 60 seconds. This keeps you from having to switch batteries frequently, which can help protect both the isolator and your batteries.
Your batteries will be safe from constant charging and discharging processes thanks to this feature. Fewer switches are needed, so the isolator helps keep power stable and extends the life of the main and backup batteries. It works great for RVs, trucks, and off-grid systems that need to control their energy consistently.
Dual Voltage Display Shows Real-Time Battery Status (Range 4.5V–20V)
The VEVOR 12V dual battery isolator kit features a bright dual-voltage LCD screen that displays the real-time voltage of both your main and backup batteries, which can range from 4.5V to 20V. With this feature, you can quickly check each battery’s health to ensure it is operating safely.
The LCD screen also makes troubleshooting a lot easier, as you will see. You can make smart choices about charging and maintenance by looking at the exact voltage numbers. Instead of overcharging or undercharging, our system keeps the batteries at the right level so they last longer and work better.
12V 140 Amp 20 ft 6AWG Smart Battery Isolator for Reliable Power
With a 12V rating and 140 amps, the VEVOR dual battery system ensures stable voltage and current. The 20-foot 6AWG cable gives you many installation options so you can connect batteries even in larger vehicles or more complex setups.
You will notice how stable the power is that keeps your car or RV running. This 140A isolator ensures a steady flow of electricity, even when you use multiple devices, start engines, or power extra systems. The 20-foot-long cable is easy to route, so you can place it safely and neatly without stretching or bending the wires too much.
Overvoltage and Undervoltage Protection for Safe Operation
The VEVOR 12V dual-battery isolator kit features improved overvoltage and undervoltage protection, keeping your main and auxiliary batteries safe from voltage spikes and drops. This smart safety feature prevents sudden voltage spikes or drops from harming your batteries or connected gadgets.
You will also like how this safety makes your energy setup more reliable overall. The isolator quickly reacts when it senses excessive voltage, protecting your electronics and batteries. This smart monitoring gives you peace of mind, knowing your car or off-grid system will always have power.
Durable, Shockproof, and Dustproof Design for Long-Lasting Use
Built to last, the VEVOR 12V dual-battery disconnect kit is dustproof and shockproof. You can leave it outside in rough conditions, with strong shocks and dust, and it will still work fine.
When you put this isolator in place, you will also notice how strong and reliable it feels. You can keep it running smoothly even in rough terrain or dusty work sites, and it will protect both your main and backup batteries. The sturdy construction guarantees steady performance over time so that you can keep your attention on your trip, job, or adventure without distractions.
Complete Installation Kit with Cables, Connectors, and Accessories
The kit includes one 140A smart battery isolator, one 20-foot 6AWG red cable, one 2-foot 6AWG black ground cable, three pure-copper connectors, two heat-shrink tubings, four cable lugs, six zip ties, and mounting screws. Simple to set up.
Whether the kit is your first time working with a battery isolator or not, the installation will be easy. The included components and accessories save you time and money because you don’t have to buy them separately. By following the easy setup steps, you can have a fully functional dual-battery system that powers your cars or off-grid systems effectively.








































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