Stealth DC Charger with US2

[wakepics]

I just picked up a new 24v Terrova for this year and have been trying to think of ways to keep transducer wiring as clean as possible. I have a Garmin GT20 that I've used on the TM the past couple years, but I never really use DownVu, so I'm considering just hooking my Garmin up to the US2 in the Terrova for 2D. Now my question - I use a Stealth 1 AC/DC Charger and I've read that the ground required from cranking to trolling batteries can cause a short in the Terrova, which kills the US2.

What are my options here? My understanding is that this short happens as a result of the internal ground in the head of the Terrova. If I remove this ground, I imagine I'll have interference when running the motor? On the other side, if I remove the ground from the troll to crank batteries, I'd lose the charge on the run capabilities of the Stealth system? Finally, I can just keep using the GT20 and deal with possible interference and ugly transducer wiring.

[GBhoss]

I have been running a Stealth 1 for about 6 years on 2 different boats. Both boats had a Fortrex and I have not had a single problem. Give Danny a call at Stealth 1 and he should be able to answer that question for you.

[Ann-Marie]

The problem only occurs if you accidentally lose the power ground on the motor forcing motor current to flow to ground through the US2 wiring. Your motor should already have a fuse in it to protect this wiring but if it is missing it should be a simple job to install one. I'm sure John at Jones Trolling Motors can help you if needed.

[KEPTriton21]

Stealth - Danny are the best on the market. I had mine for many years now and the Stealth System has extended my battery life. 4 years now running the same 3 batteries for my 36 volt trolling motor and all 3 batteries still charge to 13.+ volts. Still at full charging capacity and I credit the Stealth System.

[CatFan]

The problem only occurs if you accidentally lose the power ground on the motor forcing motor current to flow to ground through the US2 wiring. Your motor should already have a fuse in it to protect this wiring but if it is missing it should be a simple job to install one. I'm sure John at Jones Trolling Motors can help you if needed.

It happens whenever there is a connection between the batteries. Current flows because the noise reducing ground is at a level between TM positive and negative, but referenced to the cranking battery. Forcing the two batteries to have the same potential causes current to flow.