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UTV / ATV

Run your accessories without killing the starting battery.

Smart isolators and dual battery kits for Polaris, Can-Am, Honda and Kawasaki side-by-sides.

RV

House-bank power, managed automatically.

Keep the coach battery isolated from the chassis start battery on every trip.

Marine

Trolling motor and house loads, off the cranking bank.

IP67 potted isolators built to live on a boat.

Automotive

Audio and high-draw builds without the dead battery.

Zero voltage drop isolation for stereo systems and winches.

4WD

Recovery gear that's ready when you get there.

Winch and fridge loads on their own bank, charged automatically.

VOLTAGE SENSING
Fully automatic, no dash switch
140A CONTINUOUS
Zero voltage drop, no diodes
IP67 SEALED
Potted for marine & off-road
AGM + LITHIUM
PEP® lithium-safe profiles
STEP 01 — FIND YOUR FIT

Shop by application

All products →
UTV / ATV
14 kits · Polaris, Can-Am, Honda, Kawasaki
Marine
9 kits · trolling & house banks
4WD
11 kits · winch & recovery loads
Automotive
8 kits · audio & high-draw builds
Golf Cart
8 cable sets · 36V & 48V
STEP 02 — BUILD THE KIT

Featured products

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SBI-142-PL-SML
True® Lithium Small Dual Battery Kit
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SBI-142-PL-M
True® Lithium Medium Dual Battery Kit
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SBI-142-PL-Lrg
True® Lithium Large Dual Battery Kit
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True® Lithium Smart Battery Isolator
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TERYX-SBI-CM
Kawasaki Teryx Dual Battery Kit TERYX-SBI-CM
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TERYX-SBI-CK
True® Kawasaki Teryx Dual Battery Kit TERYX-SBI-CK
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TALON-SBI-CM
True® Honda Talon Dual Battery Kit TALON-SBI-CM
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TALON-SBI-CK
True® Honda Talon CK
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DEALER PROGRAM

Wholesale pricing, POP displays, and drop-ship.

Approved dealers see net pricing site-wide, order at tiered volume breaks, and get brochures, wiring diagrams and counter displays shipped with the first order.

FROM THE BLOG

Wiring know-how and install guides

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ARTICLE

A Dual Battery Isolator Operates as an Automatic Power Gate

Between your primary starter battery and secondary auxiliary battery — how the two operating states keep your start battery safe.

Read more →
ARTICLE

How a Dual Battery Isolator Works to Protect Your Starter Battery

How isolation protects cranking power, plus a step-by-step DIY installation guide from mounting to testing.

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ARTICLE

Choosing the Correct Wire Gauge and Fusing for Dual Battery Systems

How to size wire for your current draw and cable run, and where to fuse every positive conductor.

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FROM THE FIELD
“The isolator was exactly what I needed to separate my trolling battery — setup took under an hour. Stayed charged enough to run the Minn Kota all weekend without the shore charger.”
WALTER H. — TENNESSEE
THE COMPANY

True Amalgamated builds, assembles and ships from Deer Park, Washington. We design a short line of products that solve one problem completely, and we support them for the life of the vehicle.

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