Description
Trusted by Leading Brands
A TRUE® exclusive!
Why Choose a Lithium Dual Battery Isolator Kit?
When running LiFePO₄ (Lithium Iron Phosphate) auxiliary batteries, a standard isolator isn’t enough. Lithium batteries have unique charging requirements, and using the wrong kit can shorten their lifespan or leave them undercharged. A Lithium Dual Battery Isolator Kit is purpose-built to handle these needs, making it the smarter choice for modern van builds, off-road rigs, and audio systems
Key Reasons to Choose Lithium-Compatible Kits
- Optimized Charging Profile
Designed specifically for lithium batteries, ensuring proper voltage regulation and safe charging from your alternator. - Starter Battery Protection
Automatically disconnects the auxiliary battery when voltage drops, preventing your main battery from draining and keeping your vehicle ready to start. - High Efficiency
Lithium isolators minimize voltage drop, allowing faster charging and better performance compared to traditional isolators. - Durability Under Load
Built to handle high-current demands from inverters, fridges, lighting, or audio systems without overheating or failure. - Future-Proof Technology
As more van conversions and car audio builds move to lithium, having a lithium-ready isolator ensures compatibility for years to come. - Compact & Complete Kit
Includes heavy-duty cables, lugs, shrink tubing, and installation accessories, making it easy to set up even in tight spaces.
Testimonials
“I run a 2021 Chevy Silverado with dual batteries, a winch, and a sound system with a large speaker setup that hits hard. Before installing the True® Large Battery Isolator, I was always second-guessing my setup—especially during long job sites or weekend overlanding trips.
This isolator changed everything. It automatically manages the charge between my starter and auxiliary batteries without me lifting a finger. No switches, no worries. I can run my gear all day and still fire up the truck without hesitation.
Install was clean, and the unit feels built for real-world abuse. If you’ve got a Silverado and serious power needs, this isolator is the upgrade you didn’t know you needed—but won’t want to live without.”
Austine Jones, Arizona
Frequently Asked Questions
1. What is P.E.P.® (Proprietary Efficiency Programming)?
- P.E.P.® is TrueAm’s smart logic that optimizes battery protection and charging efficiency.
- It ensures the isolator only connects when safe and beneficial for both batteries
2. Does it regulate charging amps?
- No, the SBI doesn’t regulate amperage. That’s handled by your alternator and voltage regulator.
- The SBI simply controls when the second battery is connected based on voltage thresholds.
3. How do I install it?
- DIY-friendly with waterproof cables, 3M Dual Lock™ fasteners, and clear wiring diagrams.
- Can be mounted on any clean flat surface—including directly on the battery case
4. Can I manually override or shut it off?
- The male connector underneath can be wired for remote shutoff.
- Inline switches are optional but not required—SBI handles disconnection automatically.
5. How do I monitor battery status?
- Optional Single Meter Dual Display (SMDD) shows real-time voltage for both batteries.
- Saves space and simplifies monitoring
Reviews
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