Maintenance charger for R1200RT

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Goldbug101
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Maintenance charger for R1200RT

Postby Goldbug101 » Sun Oct 16, 2016 9:19 pm

Hi all.

Have just moved from a R1150RT to a RT1200RT LE LC.

I have a CTEK intelligent maintenance charger, which I plugged into the bike's aux socket. It seemed to be working fine.

However, according to the manual, the ECU cuts off power to the socket after a while to protect from current drains and indeed the lights on the CTEK have gone out.

Presumably this means my charger won't work with a CANBUS motorbike. I understand I could make a permanent connection direct to the battery, but that seems a bit of a faff when plugging in to the sockets worked fine on the 1150.

BMW does its own, very pricey charger, but is there any other solution?

Thoughts/suggestions appreciated.

GB
2015 R1200RT LE LC - Oct 2015
2003 R1150RT - Sept 2015
Honda NT700VA-8 Deauville - Feb 2015
Honda ST1100 Pan European - 2003
Honda CX500 - 1981
Honda CB250N Superdream - 1979
Honda CB200 - 1978

Jockboxer
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Re: Maintenance charger for R1200RT

Postby Jockboxer » Sun Oct 16, 2016 9:55 pm

Connect your charger directly across the battery. I do this with my RT and have had no problems.

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Goldbug101
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Re: Maintenance charger for R1200RT

Postby Goldbug101 » Mon Oct 17, 2016 7:33 am

Connect your charger directly across the battery. I do this with my RT and have had no problems.
Thanks Jock.

Was hoping to avoid this but at least it looks as though the battery is reasonably accessible on the 1200.

Cheers

GB
2015 R1200RT LE LC - Oct 2015
2003 R1150RT - Sept 2015
Honda NT700VA-8 Deauville - Feb 2015
Honda ST1100 Pan European - 2003
Honda CX500 - 1981
Honda CB250N Superdream - 1979
Honda CB200 - 1978

Mike D
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Re: Maintenance charger for R1200RT

Postby Mike D » Mon Oct 17, 2016 8:45 am

Other can bus chargers are available e.g.

http://www.motohaus.com/acatalog/Optima ... ition.html

Not used one, however as I don't have a can bus equipped bike.

Mike

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Goldbug101
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Re: Maintenance charger for R1200RT

Postby Goldbug101 » Mon Oct 17, 2016 11:55 am

Other can bus chargers are available e.g.

http://www.motohaus.com/acatalog/Optima ... ition.html

Not used one, however as I don't have a can bus equipped bike.

Mike
Thanks Mike.

Looks like it's a bit cheaper on Motoworks, but looking at the instructions for BMW's own, very expensive, CANBUS-compatible charger, they supply croc clips as well, which suggests it doesn't do any harm to make a direct-to-battery connection, although the rider's manual says making direct battery connections with a charger can harm the bike's electronics.

The BMW charger instructions do say the battery should be disconnected from the bike for direct connections with the croc clips. Maybe a) they want to scare you into buying their charger and b) the risk to the bike's electronics is only from a 3rd party charger going mental and overloading the voltage/current which could damage the bike's systems?

Jockboxer seems to be getting away with it, so I am inclined to do the same with my CTEK and save a chunk of cash. It has a permanent battery connection lead and flying socket.

GB
2015 R1200RT LE LC - Oct 2015
2003 R1150RT - Sept 2015
Honda NT700VA-8 Deauville - Feb 2015
Honda ST1100 Pan European - 2003
Honda CX500 - 1981
Honda CB250N Superdream - 1979
Honda CB200 - 1978

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Goldbug101
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Re: Maintenance charger for R1200RT

Postby Goldbug101 » Wed Oct 19, 2016 4:40 pm

Connect your charger directly across the battery. I do this with my RT and have had no problems.
Managed to do this yesterday and it does indeed seem to work ok. Not as elegant as plugging the charger into the onboard auxiliary socket, but cheaper than buying a fancy new charger! My CTEK 5.0 is a pretty good charger in any case and has a special setting for motorcycle batteries and can handle AGM batteries as well, so all fine - I hope!

Battery is *much* easier to get at than the R1150RT, though still a bit of a faff as it's wedged in tight and the plastic retainer resists removal - you don't want to force it for fear of breaking it - but it yielded eventually. Don't think the battery had ever been out before as the bike's only 21 months old.

GB
2015 R1200RT LE LC - Oct 2015
2003 R1150RT - Sept 2015
Honda NT700VA-8 Deauville - Feb 2015
Honda ST1100 Pan European - 2003
Honda CX500 - 1981
Honda CB250N Superdream - 1979
Honda CB200 - 1978

Bill Smithson
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Re: Maintenance charger for R1200RT

Postby Bill Smithson » Wed Oct 19, 2016 6:30 pm

I fitted an auxiliary power socket to my R65LS.
It's a weatherproof DIN socket from ebay permanently connected to the battery and mounted on a homemade bracket on the frame. I can use it for Sat Nav, charger and tyre compressor as necessary.

Image

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Tango
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Re: Maintenance charger for R1200RT

Postby Tango » Wed Oct 19, 2016 6:31 pm

You could always connect a permanent flying socket fused of course to your battery. The socket could be fitted or tie wrapped in a convenient position of your choice.
Regards,
Marty
(2012) R1200GS
(1992) R80GS
(1987) R100GS Bumble Bee

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Tango
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Re: Maintenance charger for R1200RT

Postby Tango » Wed Oct 19, 2016 6:34 pm

:grin: Oops Bill beat me to it by one minute
Regards,
Marty
(2012) R1200GS
(1992) R80GS
(1987) R100GS Bumble Bee

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Goldbug101
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Re: Maintenance charger for R1200RT

Postby Goldbug101 » Wed Oct 19, 2016 6:58 pm

Nice ideas, there, chaps. Thanks.

The Ctek connector is waterproof, so that's not an issue, just the socket dangling looks a bit untidy, but what the hell - it works.
2015 R1200RT LE LC - Oct 2015
2003 R1150RT - Sept 2015
Honda NT700VA-8 Deauville - Feb 2015
Honda ST1100 Pan European - 2003
Honda CX500 - 1981
Honda CB250N Superdream - 1979
Honda CB200 - 1978

TR80
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Re: Maintenance charger for R1200RT

Postby TR80 » Fri Apr 28, 2017 8:44 am

Alternative Can-bus charger made by NoCo (£32 off Ebay) works, but follow the instructions ...
.... ignition on before plugging the charger into the mains socket, then ignition off.


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