True® UTV Battery Isolator Kit with PEP UTV-SBI-18

(7 customer reviews)

Price range: $66.95 through $86.95

The new True® UTV-SBI-18 with PEP is the first and only smart battery isolator designed completely, from the casing up, specifically for the UTV application.

  • Smart Voltage Sensing: Automatically connects and disconnects batteries based on voltage thresholds.
  • Compact & Durable Design: Smaller, stronger casing with improved stud placement for easy cable connections from multiple angles
SKU: UTV-SBI-18 Category:

Description

Naturally, it features the proven PEP® programming—but now housed in a groundbreaking new form factor engineered specifically for the demands of UTV installations.

Smaller, tougher, and more versatile, this redesign unlocks expanded mounting options and streamlined integration. It directly responds to feedback from UTV enthusiasts while reflecting True® commitment to continuous innovation and application refinement

Trusted by Leading Brands

Revolutionizing UTV Power: Meet the All-New True® UTV-SBI-18

The time has come for the UTV community to get the attention and respect it deserves in the marketplace. You are all aware of the current “True” labeled products are the only one’s manufacturer to meet the demand of the UTV second battery charging needs. With the development of PEP® it revolutionized the process of fully automated battery isolation. Out with the old and in with the new!!!!

We are proud to offer the latest advancement from True Amalgamated (trueam.com) under the “True” label. Allow us to introduce the UTV-SBI-18 and its connection kits the UTV-SBI-18CK and UTV-SBI-18CM.

The new UTV-SBI-18 is the first and only True® battery isolator designed completely, from the casing up, specifically for the UTV application. Of course, it employs the highly successful PEP® programming but it is encased in a revolutionary new shape that better services the UTV installation demands. It is smaller, stronger, and provides more installation options. These changes addressed concerns expressed by the UTV enthusiasts as well as True’s own desire to advance their application.

A. The new case design and configuration allows for three mounting options:

  1. Traditional screws
  2. 3M Dual Lock™ (can attach directly to battery itself)
  3. Leave suspended in cable

B. The new top stud design allows:

  1. Easy cable connection from almost any angle
  2. Simple access for bypass jumper

 




True® UTV-SBI-18 Wiring Diagram

Our Amazon Store Review and Testimonials

 (These videos are not endorsed or represented as an “Official Installation video” by True Amalgamated and True Amalgamated accepts no responsibility for its content. It is produced by the end-user as stated. Follow entirely at your own risk.)

Frequently Asked Questions

Does it regulate amperage or prevent overcharging?
No. The UTV-SBI-18 does not regulate amperage—that’s handled by your voltage regulator and stator/alternator. It simply controls when the second battery is connected to the charging system.
This is normal behavior. The LED indicates the isolator is still connected. To test disconnection, briefly turn on the headlights—the LED should turn off, confirming the isolator has opened the circuit.
Yes. The kit includes 3M Dual Lock™, allowing you to mount the unit securely without screws. It can also be left suspended if preferred.
The kit uses an intelligent battery isolator with PEP® (Power Excursion Protection) technology. This ensures the main battery is prioritized for starting, while the auxiliary battery powers accessories

 

Yes. The UTV-SBI-18 is specifically engineered for stator-based UTV systems, ensuring efficient charging without overloading the system.

Kit Inclusions:

  • 1- True® utv-sbi-18 with PEP® for stator equipped vehicles
  • 2- High quality silicon stud insulators
  • 1- ground wire crimp connector
  • 2- 2.5 inch strips of 3M Dual Lock™
  • 1- alcohol wipe to clean surface
  • Official True® retailer
  • Delivery: USPS

🔧 Core Features

Key Features of the UTV-SBI-18 with PEP®

Smart Voltage Sensing (PEP® Technology)
Automatically connects and disconnects the auxiliary battery based on voltage thresholds. It engages at 13.4V and disconnects at 12.8V, ensuring the starter battery is always protected.

Purpose-Built for UTVs
Unlike generic isolators, this unit is engineered from the ground up for stator-based UTV charging systems, making it ideal for Polaris, Can-Am, Yamaha, and other side-by-sides.

Compact & Rugged Design
Features a smaller, stronger housing with improved stud placement, allowing for easier cable routing and installation in tight spaces.

No Manual Switching Required
Fully automatic operation—no need for toggle switches or user input. It intelligently manages charging between the main and auxiliary batteries.

LED Status Indicator
Built-in LED provides real-time feedback on isolator status (connected/disconnected), helping users verify system behavior at a glance.
– 3M Dual Lock™ Mounting System
Allows for tool-free, vibration-resistant mounting—no drilling required. The unit can also be suspended if preferred.

Ambidextrous Terminal Design
Either terminal can connect to either battery, eliminating installation errors and simplifying wiring.

Low Standby Current Draw
Draws less than 0.01A when idle, preserving battery life during storage or low-usage periods.

DIY-Friendly Kit
Includes pre-terminated cables, ground wire, insulators, and clear instructions—ideal for both enthusiasts and professional installers.

This isolator is especially valuable for UTV owners running winches, sound systems, lighting, or GPS units off a second battery, ensuring the main battery remains ready to start the engine.

🚚 Shipping Details

Orders are shipped via USPS First Class or Priority Mail, with up to $100 insurance included. Most orders are processed within 1–3 business days and come with tracking. The company aims for same-day shipping if placed before 2:30 PM PT, excluding weekends and U.S. federal holidays. Best of all, shipping is free—no hidden fees.

Additional information

Location

US, CANADA, AUSTRALIA

7 reviews for True® UTV Battery Isolator Kit with PEP UTV-SBI-18

  1. William Parke

    Just added an auxiliary battery to my Honda Pioneer 1000.
    This is working great and was easy to install.
    I like being able to charge both batteries with 1 battery tender.
    I have dual battery gauges so it’s easy to see both batteries are being charged.
    when running accessories I can see the isolator is working when the engine is not running only the auxiliary battery voltage is drawn down and the main battery is unaffected . Charges both when running as it should.

  2. Joshua

    November 21, 2017
    Verified Purchase
    I had purchased an Aopec smart battery isolator before and had nothing but problems with it so I was hesitant to purchase another even though it was a different company simply because of how these work. Well I broke down and ordered this one for my Polaris Ranger and after installing it just works, Have been using it for two weeks now without any issues. It is also smaller and takes up less space.

  3. just huntin

    just huntin
    5.0 out of 5 starsGood purchase
    January 6, 2016
    Verified Purchase
    Quick delivery. Easy install. Much better than the Polaris separator. Called manufacturer to ask a question and was very pleased with the conversation.

  4. B CARV

    B CARV
    5.0 out of 5 starsWorks flawlessly!
    April 9, 2018
    Verified Purchase
    Easy install, works exactly as described! Friendly customer service and a great product from a small business in Washington state!

  5. onesoccerfan

    onesoccerfan
    5.0 out of 5 starsWorks great
    July 28, 2018
    Verified Purchase
    Easy to install and wire. Works as described. It is a must have if you run a second battery on your side by side

  6. Vince Amazon

    A very good decision

    Best battery charging and isolation management choice in the market. I have soaked it and covered with mud during trail riding and the waterproof casing works well. The price is competitive for this single unit.

  7. True Customer

    Perfect for replacement for my old dual battery isolator installed in my Honda pioneer 1000-5

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