TomTom Rider causing flat battery?

[StewMcGrew]

So just before I went on my holidays (17 days ago) I installed the mounting and electrics for my new TomTom rider using direct battery connection, when I came back the battery was almost dead and had to bump start the bike.

Could this have been caused with the direct battery connection?

Should I be using one of these,

http://www.nippynormans.com/products/f650gs-08-on/item/lead-for-connecting-any-garmin-or-tomtom-gps-into-the-bmw-harness-gar-canbuszu660

so that it only comes on with the ignition?

If the can bus wire is the way to go, where does it actually plug in too? I have 2012 GSA

Many thanks

 

[Blackal]

The mount on the TomTom drops the voltage down from 12v to 5v i think, so is likely to drain the battery unless on a switched supply.

The connection you list from NN - is exactly what you need.

Al

 

[StewMcGrew]

Thanks. Will get one ordered then.

 

[Malvern_Beemer]

Location of SatNav power socket on 2010 GSA. Lots of info here:

 

[Greenman14]

Best not to leave the sat nav plugged in except when you're actually using it. There is a small current draw even when the bike ignition is off (according to other threads here- try a search)

 

[Blackal]

Best not to leave the sat nav plugged in except when you're actually using it. There is a small current draw even when the bike ignition is off (according to other threads here- try a search)

Don't think that is applicable to CANbus which should kill the circuit completely?

Al

 

[Roymondo]

Best not to leave the sat nav plugged in except when you're actually using it. There is a small current draw even when the bike ignition is off (according to other threads here- try a search)

The problem is not the TomTom itself, but the charging dock/cradle. Undocking the TomTom still leaves the cradle connected, and if a "permanent live" battery connection is used, it will drain the battery over time. Answer is to use a switched feed - the NippyNorman connector mentioned makes the job neat and simple, although you could just as easily tee-in to the sidelight wiring for example.

 

[ymfb]

Some years ago I bought a brand new K1300S and it was fitted by NOG with a Zumo 660 and changing base. It flattened the battery after a few days. NOG fitted a new battery and various other things. In the end they worked out that it was drawing a minuscule amount of current, and changed it for the BMW Navigator IV. Basically the exact same satnav but the base was different.

The point is that canbus did not isolate with the Garmin, but did with the Navigator IV, NOG could not explain it.

 

[Roymondo]

Some years ago I bought a brand new K1300S and it was fitted by NOG with a Zumo 660 and changing base. It flattened the battery after a few days. NOG fitted a new battery and various other things. In the end they worked out that it was drawing a minuscule amount of current, and changed it for the BMW Navigator IV. Basically the exact same satnav but the base was different.

The point is that canbus did not isolate with the Garmin, but did with the Navigator IV, NOG could not explain it.

I think there can be (no pun intended) problems if the accessory concerned "fools" the CANbus into keeping the connection "live" - same trick is used by the "CANbus enabled" battery tender/chargers. Pretty sure I've seen the same sort of problem reported by other Garmin users.

Could be talking out of my back passage though...

 

[StewMcGrew]

I have disconnected the cradle from the battery (using the inline splitter it came with) for the time being until the Canbus plug arrives (hopefully today).