BMW K bikes (Bricks)

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Bonzo

Bonzo
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I have found my old Gerbing heated gloves and inner jacket and thought Id give them a whirl.

Possible daft question alert.  Embarassed  

Instead of wiring into the battery can I plug them direct into the socket in front of the coils (16v model) as I have the BMW plug connection? I've previously only used this plug as a means of keeping the battery charged.

The Gerbing manual says I need an inline fuse though. Example: gloves @ 2.2 amps, Jacket @ 7.4 amps. If using both - (9.6 amps) a 10 amp fuse is required - so I'm guessing direct into the socket isn't an option?.


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1990 K100RS 4V (VIN# 6406682)
2017 R1200RS SE Sport
    

Suzi Q

Suzi Q
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Yes it is - on the assumption that you have a standard BMW socket, then it will have its own dedicated fuse (even an aftermarket/DIY socket should have its own fuse somewhere).
Just replace the socket fuse with one that is suitable for your gloves. Then you'll be protected. The idea of fusing is to prevent more current than a circuit/device (i.e. your gloves in this case, plus the wiring to them) can handle without catching fire - you don't want to be that warm.
Of course, if you also use the same socket for a tyre pump, you might need to pack some larger fuses on your bike just in case.
No daft questions here  Smile


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Sometimes I'm not really Suzi Quatro.
    

Bonzo

Bonzo
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Thanks very much Chris.

The fuses are all 15a in my fusebox and i think #4 is for the power socket, so I'll swap the fuses accordingly

Thanks again mate  Heated clothing - direct into socket? 112350


__________________________________________________
1990 K100RS 4V (VIN# 6406682)
2017 R1200RS SE Sport
    

Two Wheels Better

Two Wheels Better
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Curiously, my Oilheads all use a blue, 4 amp fuse for the accessory socket, the very point heated gear was meant to be plugged into...

Gerbings originally were made a few miles from here, in Union Washington, on Puget Sound by Gordon Gerbing himself. I still use a jacket liner I bought in December of 2004. It never fails to feel like I'm standing next to a nicely burning fireplace on a frosty day.


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1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

1977. It was a very good year. Somewhere.
    

Suzi Q

Suzi Q
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Life time member
Just checked to be safe - the OE accessory socket is fused at 15A. You'd hope that it would've been, 'cos heated clothing was around in 1984 and very much a BMW 'thing'. 
The 15A fuse is fine to use with the heated clothing btw, but it makes sense to replace it with the lowest possible rating. I'd guess that heated clothing is, in theory at least, susceptible to short circuits, what with the flexing and everything, and the resistance wire would overheat if it got crossed. Thing is, Gerbing would have you use a 5A fuse if you've just got gloves, but a 10A fuse if you add that jacket...which then lowers the protection for the gloves. So, it's not a perfect system, but then what is?
Gerbing stuff is great btw. I have Raynaud's so riding past September would be impossible for me otherwise.


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Sometimes I'm not really Suzi Quatro.
    

Bonzo

Bonzo
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Life time member
Lifelong Raynauds sufferer here too.


__________________________________________________
1990 K100RS 4V (VIN# 6406682)
2017 R1200RS SE Sport
    

7Back to top Go down   Heated clothing - direct into socket? Empty current limiting Sun Feb 07, 2021 3:20 pm

Paddy1

Paddy1
Silver member
Silver member
hi all,
just a thought... install 15 a fuse then when the gloves and vest etc are all warmed up take an Amprobe and set it to “DC” scale clip it around the wire as close as possible to the fuse and you’ll have a really good idea. 
BTW I always up it by 10% 
just in case both call for full power at the same time.
when you use a climate controller it actually turns them on and off as needed therefore changing the current draw from the system socket/wiring/ fuse.
remember if voltage goes down the current goes up!
biggest enemy is poor loose or corroded connections and undersized wiring.
Note I love my 35+ year old Gerbing gloves and heated vest.  cheers


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Riding Beemers since 1988
1986 K100RT, 1985 K100RS, 2001 K1200LT, 2004 R1100S, 2004 R1150, 1980 R65, 2014 Zero FX
    

8Back to top Go down   Heated clothing - direct into socket? Empty correction Sun Feb 07, 2021 3:22 pm

Paddy1

Paddy1
Silver member
Silver member
clip the Amprobe on and watch as each item draws current. then after they warm up for reference.
they use more power to get up to temp.

+1 Chris846 good advice as always.


__________________________________________________
Riding Beemers since 1988
1986 K100RT, 1985 K100RS, 2001 K1200LT, 2004 R1100S, 2004 R1150, 1980 R65, 2014 Zero FX
    

Bonzo

Bonzo
Life time member
Life time member
I need a Y piece so that I can use both the jacket liner and the gloves. Was gonna ask if a controller is absolutely necessary?



Last edited by Bonzo on Sun Feb 07, 2021 4:52 pm; edited 1 time in total (Reason for editing : spelling)


__________________________________________________
1990 K100RS 4V (VIN# 6406682)
2017 R1200RS SE Sport
    

10Back to top Go down   Heated clothing - direct into socket? Empty necessary? Sun Feb 07, 2021 4:00 pm

Paddy1

Paddy1
Silver member
Silver member
may not be necessary but much more comfortable when touring.
start the day cold but the heated clothing heats up quickly and you’ll want to be able to control them. 
They are a bit expensive but I believe they are worth it.


__________________________________________________
Riding Beemers since 1988
1986 K100RT, 1985 K100RS, 2001 K1200LT, 2004 R1100S, 2004 R1150, 1980 R65, 2014 Zero FX
    

Two Wheels Better

Two Wheels Better
Moderator
Moderator
@Bonzo wrote:I need a Y piece so that I can use both the jacket liner and the globes. Was gonna ask if a controller is absolutely necessary?
A controller makes your riding life heaps easier. You don't have to use a specific Gerbings controller as there are several other brands available, as well, whether newer type single pin connector or the earlier SAE two pin, there are splitter/adaptors for those, too. Warm n Safe,  Powerlet, HeatUp, etc., are the brands of controllers, tho' I'm not sure of UK availability. Let me know if you can't locate one and I'll see what I've got in the shop.


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1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

1977. It was a very good year. Somewhere.
    

Bonzo

Bonzo
Life time member
Life time member
Thanks for the info guys. 

And there are even wireless control units now. Blimey.


__________________________________________________
1990 K100RS 4V (VIN# 6406682)
2017 R1200RS SE Sport
    

Two Wheels Better

Two Wheels Better
Moderator
Moderator
@Bonzo wrote:Thanks for the info guys. 

And there are even wireless control units now. Blimey.
Yep. I've been using a wireless controller for over five years now - made by Powerlet - on the same batteries. It switches off after sending its thermostatic signal.


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1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

1977. It was a very good year. Somewhere.
    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
I wired a weatherproof marine outlet at a convenient spot on the left knee pad on my K75RT. It is connected to a generic PWM(pulse width modulated) power controller I got on eBay that is installed in a small plastic case I got there as well.

Works great and cost me about $10 if I recall. Took a little soldering and drilling to make it all hang together, but it wasn't rocket surgery. I put the controller in the left side glove box. As far as fuses, I left whatever was there, probably a 15 amp.

Fuses are sized in most cases to handle as much current as the wiring connected to them. I figure that 12v isn't going to kill me, and my experience is that when heated stuff fails it is due to a wire breaking and opening the circuit, not a short circuit from two bare wires touching each other. Most heated gear is designed to isolate conductors that are at large voltage differences, but if your stuff is made by the commies, all bets are off.


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Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

Suzi Q

Suzi Q
Life time member
Life time member
#3 for the wireless controller:
Heated clothing - direct into socket? Img_3518

Left for gloves, right for jacket. Much better than fiddling for the Gerbing dongle hanging - somewhere - out of your clothing  Smile
I just wish I'd had Point Seven Five's abilities and built my own. That way the wireless thing wouldn't really be necessary because the controller would be on the bike side of the plug socket.


__________________________________________________
Sometimes I'm not really Suzi Quatro.
    

Dai

Dai
Life time member
Life time member
-Guys - unless you're going to be really careful about powering up items one after another, hitting the whole lot in one go (9.6 amps) is eventually going to kill a 10 amp fuse with the cold inrush current. Also, 9.6 amps is close enough to the limit to cause the fuselink to heat up and not blow; road vibration will then cause the softened fuselink to fall apart. In both cases you'll go scrambling looking for a short-circuit that doesn't exist. Stick with the 15 amp fuse.

As an illustration; in the UK you used to be able to get 3Kw fan heaters. On a (nominal) 240volt circuit they draw 12 amps flat out from a 13 amp circuit. I am sure that the majority of the elderly members here ( Heated clothing - direct into socket? 44271 ) have had the experience of pulling the plug on one of those heaters and finding it was very hot.The fuse itself has also been acting like a heater but running close enough to the limit not to blow. It caused quite a few house fires. I think 2Kw is the maximum you can get now; at least, I haven't seen any 3Kw ones on sale for a while now.


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1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

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