Parasitic battery drain r1150gs

quaycrest

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I have a parasitic battery drain on my 2001 R1150GS of 11ma and have removed all fuses one by one along with all relays again one by one in the fuse box and none of them causes the reading to go down. The drain flattens the battery after about 4 weeks if not used and this is not ideal at this time of year when riding time is reduced so I wanted to try to get the issue resolved before spring arrives.

The reading is the same with all accessories disconnected from the battery and only the single positive lead connected and the negative lead and battery connected in series through the multimeter.

I checked all fuses individually for voltage and they all show zero volts across the terminals.

So my question is what is connected to the battery that could cause such a drain that is not fused or relayed, would the alternator be a suspect or what could be the cause of such a low drain?

Thanks in advance for any help, advice or guidance.

Ian.
 
11ma is nothing. An acceptable figure for my RT 1250 is 35ma.
 
No Alarm or tracker fitted and I believe clock would be much a lower draw than 11ma, thanks for the suggestions
 
I wouldn't worry about 11ma - just leave it on an Optimate/trickle charger.

BTW, is there a SatNav mount?
 
My bike is outside with no access to regular power for an Optimate unfortunately.

Yes I have a sat nav mount but it was powered via a fuzeblock distribution device on a switched live feed which was disconnected when testing.
 
I had the same issue with a standing battery discharging over time on my r1150gs and no power to plug it in to, resolved it with a little 1.8w solar panel connected via a power din plug.
 
Voltage regulator probably - a leaky diode
 
11mA is 1.8 Amp hours per week. Flat battery after a few weeks as per original post.

Do you have anything else connected like a USB socket or, a sat nav mount?
If nothing else then, as has been said, regulator is probably best bet.
 
If your not fussed about resetting the clock , a battery cut off switch might be worth considering .
 
boatman said:
If your not fussed about resetting the clock , a battery cut off switch might be worth considering .
Click to expand...

It’s not just the clock, the Motronic also gets a constant supply from the battery via fuse 5 to maintain the memory.

And

The ABS control module gets a power supply unfused direct from the battery.
 
Any idea what the standard load from the ABS?


Am I correct in my thinking that the rectifier/diodes is part of or fitted to the alternator?
 
There is a relay in the abs module which can cause electrical drain, had it happen once on a customers K1100LT which has the same abs unit.
 
If removing fuses isn't helping you can volt drop test to find a parasitic draw. You're going to need a wiring diagram.
 
Nippy Normans supply Touratech, Wunderlich, Desert Fox and many other makes of accessories.
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