Why not just add the
LinQ Deep Snow Seat Box

orhttps://ski-doo-shop.brp.com/us/en/860201355-linq-seat-bag-4-l.html#gallery-prev-area

LinQ Seat Bag - 4 L or 11 L

 

What type of sled do you have? I am assuming 2 stroke with pull start as well as electric start? You can also put the LinQ rack over the battery housing and that gives you 3rd set of LinQ attachments on the sled.

 

Sorry, I guess I should have added that. It is a 2025 850 summit expert 165. No electric start, just the pull start and shot start. It has a small battery (not big enough for a starter) that I think it just powers the display screen.

 

Pretty sure the 850's don't have pull start unless you add it

 

Mine has a pull start and shot start, no electric start.

 

Assuming you have the pull start or that you are willing to rope start it on the primary, disconnect the battery and try it.

 

Yes, it only has a rope start and shot start. The battery does not help with starting. I removed it, and it seems the only thing the battery is for is to run the display when the machine is off

 

I think etecs need the battery to run.

 

My wife's 2024 summit does not have a battery, and I removed mine now, and it works fine without the battery. I think its only purpose is to run the display screen when the sled is not running?

 

I disconnected the battery, and it seems to work just fine other than the display does not turn on until the machine is running (which is fine with me).

 

Does the shot system still work with the battery disconnected?

 

Actually the battery could be used to dampen the voltage fluctuation for the screen, the VR by its self might not be enough and the LCD screen could be damaged by voltage spikes and brown outs.

I have never seen BRP add extra gear on any vehicle they build if it is not necessary, especially on the electrical side, meaning there is a reason the battery is there.

I could be wrong as I am not related to BRP in any way and this is all speculation on my part.

 

Yes, that is a possibility. I would not want to damage the screen, however a big battery seems like overkill just to dampen voltage fluctuations? Hopefully there is someone on here that can verify. If is is just to run the screen when the sled is off, I don't need that, but if it does more, then that is important do know.

 

Batteries can indeed serve as a 'ballast' on the system to stabilize the voltage. But in the ETEC system, the 12 volts is derived from the 55-60 volts system via a DC-DC converter. That DC-DC converter output will be quite stable simply due to its design, AND the 55-60 volt system has a capacitor for the system's voltage stabilization.

FWIW:

• The 2024 schematic for the 850 Backcountry with SHOT shows no battery whatsoever.
• The 2024 schematic for the MXZ 850 Turbo R with SHOT shows a battery but it only connects from the battery charging output of the ECM and to the cluster.
• The 2024 schematic for the 850, 8509 Turbo R, and 600R Summit and Freeride with SHOT shows no battery whatsoever.

So I agree with the OP's view: Without that small battery, there would be no way to activate the display with the sled not running unless the SHOT system ultra-cap can do that... but I don't recall or think that is what SHOT does.

 

Thank you. That is very useful information. Also I can confirm the screen does not use the shot system. Without the battery the screen turns off when the sled is turned off, but the shot still works.

From this I think I am safe to run it without the battery.... I hope.

 

I have to wonder if this small battery is also related to being able to update the large screen, or upload maps, etc., without the sled running.

 

Maybe? But if that is the case, I will just connect the battery for an update.

 

The one annoying thing I have noticed is that without the battery, every time I turn it off, and back on, it sets the clock to 10:00. That is really the only thing I have noticed, which is annoying because I would like to know the time.