UTV Stereo RZR® Pro Series 2nd Battery Kit (4-Seat Models) | UTVS-PRO-2BATT-KIT-4*THIS KIT ONLY FITS 4 SEAT MODELS. FOR 2 SEAT MODELS CLICK HERE Boost battery power with UTV Stereo's 2nd battery solution! Providing more voltage to ensure that your stereo plays longer, your lights shine brighter and your aftermarket accessories function at peak performance. The UTV Stereo Platinum Series Batteries are the longest lasting, most durable AGM (Absorbent Glass Mat) batteries on the market. They are spill proof, vibration & shock