More Stereo and Lights with TRUE Universal Dual Battery Kit

Wham Bam thank you man! 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 […]

QUAD BOSS FAILURE Testimonial

Thanks for the great product and the quick shipping! The TRUE UTV Dual Battery Kit was easy to understand and took all of about 15 minutes to install in my Polaris RZR. I replaced a QUAD BOSS battery isolator unit I had purchase earlier this year. With that kit I had water intrusion and the […]

Latest Testimonials

  Dear Dennis,  I wanted to send you a note to say happy holidays and thanks for selling me on the idea of using your new battery isolators. My little shop is now installing about 10 of these a month on both new and older model boats. I can honestly tell you I disliked using […]

Customer Testimonials

Dr. Hogan, I received the BSR’s and dual battery kit last weekend. I must admit I was skeptical of the ease of installation and the price was a little higher than the battery isolators at Wallmart but after talking with you I decided to give this a try. I have installed diode type isolators before […]