It’s a complex answer but the short answer is what the battery does and how much it helps with this phenomenon. If you’ve spent any time around Polaris forums, I’m sure you’ve heard our forum experts whine about TPS issues. TPS or potentiometers are very delicate and sensitive to electrical noise. I first learned about this with early Cummins diesels popping TPS’ for lunch in early 2000’s. After I dug deep into electrical theory trying to prevent customers from keeping 2-3 new OEM TPS’ in their glove box, I learned about electrical noise. What I was seeing back then was TPS voltage sensitivity feeding back erroneous voltage signals to control modules. Remembering those years, I did some of my own testing on a couple of non ES Polaris’ that I was chasing TPS issues with filters. Then tested my own sled that was ES. The results were astonishing. It was just easier to solve with ES. My buddies have all have ES ever since.
There is always electrical noise in any system, the question is, is the noise acceptable? And it’s a balance between too noisy and trying to design by filtering too much. Filtering too much can be a negative. The battery quickly and easily solves this.
Polaris has done a much better job in recent years with some subtle changes and contrary to the forum experts, they do read these forums and listen. ? I still think the battery is the true fix. IMO, Polaris should add it to all sleds. I’m sure the 3%er forum experts would disagree and lose their minds. You see it with every take off ES kit for sale that doesn’t include the clutch.
If you want to better understand the phenomenon, this link does a pretty good job of explaining it.
Get noise out of your power supply with a multi-prong approach. Filters, bypassing, and post-regulation all can help achieve that goal.
www.electronicdesign.com