DS18 RZR-DBATT Polaris RZR 2014+ 2nd Battery Upgrade Kit — Dual Battery System with 80A Isolator
Free shipping on orders over $100
Continental US · processed within 1–2 business days
Store-credit returns
New, uninstalled items in original packaging
In stock! Ships within 2 business days.
Award Winning Sound
2-Year Limited Warranty
Variety of Payment Options
DS18 RZR-DBATT Polaris RZR 2014+ 2nd Battery Upgrade Kit — Dual Battery System with 80A Isolator
Product Overview
Description
Product Overview
The RZR-DBATT automatically isolates your factory battery when the ignition is off. That means you can power your lights, sound system, and other accessories without draining the battery that starts your vehicle.
Dual Battery Performance
When the ignition is on, both batteries work together to handle the power load. They also charge simultaneously, giving you more juice without overworking your stator. The built-in 80-amp isolator keeps everything balanced so your system runs strong without blowing anything out.
Built to Work with DS18’s INF-28
This kit is designed specifically to support DS18’s INF-28 AGM battery. It fits securely in the front battery pocket without modifying your RZR, and it’s wired to keep all your accessories running from this second battery by default.
Everything You Need
The RZR-DBATT includes all the wiring and hardware required for a complete install. The cables are pre-sized, OFC-tinned, and built for clean power delivery. The included battery bracket is metal-coated and made to withstand mud, water, heat, and abuse.
Disclaimer: This system fits Polaris RZR 2-seat and 4-seat models from 2014 and up. It’s not compatible with the Pro Series.
SPECS
| SKU | RZR-DBATT |
| Product Type | Dual battery isolation kit |
| Vehicle Compatibility | Polaris RZR 2-seat and 4-seat models (2014+) |
| Compatibility Exclusion | Not compatible with Polaris RZR Pro Series |
| Battery Support | Designed for DS18 INF-28 AGM battery |
| Isolator Rating | Built-in 80 amp battery isolator |
| Battery Operation | Automatic isolation when ignition is off |
| Charging Method | Simultaneous charging of both batteries when ignition is on |
| Mounting Location | Front factory battery pocket |
| Wiring Type | Pre-sized OFC tinned power cables |
| Construction | Metal-coated battery bracket for harsh environments |
Free shipping on orders $100+
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
-
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
-
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.
FAQs
Please read our FAQs page to find out more.
RMS vs. MAX power — which number do I actually care about?
RMS is what your gear handles continuously; MAX is the short burst it can survive without complaint. Match your amplifier's RMS output to your speakers' RMS rating — sizing off the MAX number is how magic smoke gets released.
What does the IP65 rating on DS18 marine gear actually mean?
It's dust-tight and rated against low-pressure water jets from any direction — built for spray, rain, and the occasional wave over the bow, not for full submersion. If something's going somewhere it could sit underwater, that's a different conversation entirely.
How do I match an amplifier to my speakers without guessing?
Add up the RMS rating of everything the amp will power, and pick an amp whose RMS output (at your speakers' impedance — usually 4-ohm) lands close to that total. Undersized is thin sound; wildly oversized is a fast way to blow a voice coil.
Can I mix marine-grade gear into a standard car audio setup, or the reverse?
You can run marine-grade gear in a car — it's just over-built for that environment, no downside besides cost. Running non-weatherproof car audio gear in an open UTV or boat is the direction that causes problems.
What gauge wiring kit do I need?
It scales with your amp's power draw and the length of the run — DS18's OFC kits come in 4-gauge and 8-gauge for a reason. Undersized wiring on a high-draw system is a voltage-drop and heat problem waiting to happen; when in doubt, size up.