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@kezarts avatar
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Hooked
1965 Allstate, 1979p200e
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Hooked
@kezarts avatar
1965 Allstate, 1979p200e
Joined: UTC
Posts: 169
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Been going over this in my head not sure if would work. Could you install a 12v battery in the cowl that is fed off the brake switch and attached to a bulb in your tail light assembly? I would keep the 6v brake light connected as well. Basically running an auxiliary brake light off of a battery?
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Banned
2009 GTS 250, 2013 Buddy 125, 2014 Triumph Bonneville
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Banned
2009 GTS 250, 2013 Buddy 125, 2014 Triumph Bonneville
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Location: North Jersey
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anything is possible if you could figure out the wiring. Sorry that I can't though.

Kinda like how BMW wired in a second 12V battery on the police motorcycles. That battery was independent of the battery used for starting the bike, and I believe, only ran the emergency lights and the police radio but still got charged by the alternator.

that way, if you were stopped for a long time with emergency lights constantly on, with the engine off, or running at a low idle, your bike would still always start when needed to because you wouldn't be drawing from that battery power.
@mjrally avatar
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Veni, Vidi, Posti
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 59 Ser 2, 65 Silver Special, 90 V5N 50, 2015 HD Road Glide Special
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Veni, Vidi, Posti
@mjrally avatar
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 59 Ser 2, 65 Silver Special, 90 V5N 50, 2015 HD Road Glide Special
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Location: Oceanside, CA
UTC quote
Shouldn't be a problem running a dedicated hot wire from the battery to a brake switch (that makes a connection when the pedal is pressed), and then switch to the light. Then light to negative terminal on the battery.

I wouldnt tap into the existing grounds as the 6V batteryless systems use switches that isolate ground. If they mix you could accidentally short your battery or the grounds could bypass the switches and everything would be lit up all the time.

If the battery is only used when braking it should last a long while before needing recharging. Put a battery tender on it occasionally and itll work.

Good luck!
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parallelogramerist
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parallelogramerist
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kezarts, I'm just curious, but what's the reasoning behind your idea to run 12 volts to the brake light light that?
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Hooked
1965 Allstate, 1979p200e
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Hooked
@kezarts avatar
1965 Allstate, 1979p200e
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Posts: 169
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Thanks for the replies. Well I am a daily commuter in an urban environment . Stock 6v is pretty dim. It's cinstantly on my mind. A lot of stop and go. It would just give me piece of mind to know it's bright and letting cars know, in a more obvious way, I'm stopping.
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@kezarts avatar
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Hooked
1965 Allstate, 1979p200e
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@kezarts avatar
1965 Allstate, 1979p200e
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Posts: 169
UTC quote
Ok next question can someone recommended a battery that would work for this?
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1965 150
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Location: Wiltshire England
 
Member
1965 150
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Location: Wiltshire England
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i thought about this as my super is still suffering all sorts of electrical issues and blowing brake light bulbs for fun !!

i planned a simple stand alone circuit using a spare li-po battery from one of my rc planes, they are very small, light and, if powering only one bulb should last a good while before a charge is needed

there literally hundreds of voltage/sizes to choose from but something like this would do the job........

https://www.amazon.co.uk/FLOUREON-1500mAh-Rechargeable-Battery-Quadcopter/dp/B01ISMVPVE/ref=pd_lpo_sbs_421_img_2/261-3558052-3789823?_encoding=UTF8&psc=1&refRID=7PV344AJMTVC1EHWD2XR
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