Flat battery canbus & Sat Nav

[Dario]

Okay new power lead arrived from Garmin. Looks the same with slightly thicker cabling. DIN code varies by one digit ( ends 41 instead of 40 ).
I am holding my breath but after two days connected in the usual way no drain on battery. I established this by connecting the optimate ( canbus approved version ) over the same period with the new wiring in place. With the old wiring the optimate would show that the battery was needing charged ( red/amber light display ) were as new wiring test showed two green lights ( fully charged ). I will keep a close eye on it over the next few days but hopefully this is the problem solved.

Thanks for all your advice/comments.

Dario

 

[Fanticrich]

I appear to have a similar problem,i fitted a new garmin zumo 350 Lm the other week to my bike via the accessory socket at the headstock after the bike had sat for the week the battery went dead flat the garmin was not left on the cradle either the bike had never done this prior to the sat nav being fitted odd !

 

[WindyChuffer]

Okay new power lead arrived from Garmin. Looks the same with slightly thicker cabling. DIN code varies by one digit ( ends 41 instead of 40 ).
I am holding my breath but after two days connected in the usual way no drain on battery. I established this by connecting the optimate ( canbus approved version ) over the same period with the new wiring in place. With the old wiring the optimate would show that the battery was needing charged ( red/amber light display ) were as new wiring test showed two green lights ( fully charged ). I will keep a close eye on it over the next few days but hopefully this is the problem solved.

Thanks for all your advice/comments.

Dario

Seems Engineer was correct. Glad you have it sorted. Fekkin Canbus !

Personally, I prefer direct connection to the battery. Cheaper than fannying around with bespoke leads too.

 

[Pukmeister]

I also suspect that the front accessory socket is the same as the underseat one as far as the bike's electronics is concerned.

On my previous 2004 model GS I fitted the beak power socket as a BMW kit. It was simply a socket, drilling template and long lead with an inline male/female connector to put it in parallel with the under seat socket. It had the same 5 amp limit and was a bit pointless.

My early bike had several software updates in 2004/05 to rectify issues with the supply of power through the accessory socket. IMHO they never got it right, both with the control strategy and the cabling size/5A power limit. I hope the forthcoming water-cooled 1250 boxer design resolves this.

My current 2008 GSA has a "Fuzeblock" panel with selectable switched/unswitched fused outputs under the seat to make life easy and get around the 5 amp limit (a bit expensive for what it is but a good and elegant solution).

I think any accessory cradle, adapter etc with an internal switching voltage supply or potential divider/capacitive circuit plays havoc with the CANBUS power control and causes the battery discharge problems.

 

[Dario]

I have just come back from a weeks holiday. The bike has been connected to the new cable for eight days. Started first time :-0)
Switched on the optimate. It showed the battery to be still charged ( not full though ). I happy with this. Looks liked the new cable as supplied by Garmin has solved the problem.

Dario