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More Stereo and Lights with TRUE Universal Dual Battery Kit

Wham Bam thank you man!

Yamaha Rhino
Yamaha Rhino by www.fourwheeler.com

Just returned from a 6 day long trip on my Yamaha Rhino and we were the only one of the three units that did not have starting problems due to battery discharge situations.  All three had dual batteries but I was the only one with the TRUE Universal Dual Battery Kit and even though I had more stereo and lights than the other guys my start battery always stayed fully charged.

TRUE Universal Dual Battery Kit
TRUE Universal Dual Battery Kit

I think you’ll be getting a call from my two partners as they were rather embarrassed and had to listen to my chiding for the rest of the trip.  Poor little Polaris owners had to get jumped by a Yamaha tisk, tisk.

Thanks again for supplying a great dependable product.

Sam S.  

Kentucky, USA 

 

Reply…

Absolutely! If you’re planning to run more stereo power and lighting accessories, the TRUE® Universal Dual Battery Kit is a smart upgrade that gives your system the muscle it needs—without risking a dead starter battery.

 

🔋 Why It’s Perfect for Stereo & Lighting Setups

  • Dedicated Power for Accessories Run your amps, subwoofers, LED light bars, whips, dome lights, and more off the auxiliary battery, keeping your starter battery safe and fully charged.
  • Smart Isolator = Automatic Protection The TRUE® Smart Battery Isolator prioritizes charging your main battery first, then connects the second battery once voltage is stable—no manual switching needed.
  • Zero Voltage Drop Unlike diode-based isolators, TRUE® uses a relay-based system that delivers full voltage to both batteries—critical for high-demand audio and lighting gear.
  • Shockproof & Heat-Resistant Built for rugged use with sealed housings and heat-resistant wiring (up to 130°C), perfect for off-road, marine, or UTV environments.
  • Plug-and-Play Simplicity Comes with pre-wired components, labeled cables, and a printed wiring diagram—ideal for DIY installs.

One UTV owner ran a 4500 lb winch, 3 amps, 4 speakers, a 10” subwoofer, and a dozen lights—all powered by the auxiliary battery through the TRUE® isolator. The result? No issues, no dead batteries, and peace of mind on every ride