Much appreciated ty

 

Pull the battery and charge it. Trying to jump any modern vehicle can be disastrous to the ecu. Put a voltmeter on the terminals and if its over 11.5 then just throw a tender on it. If you don't have a tender put a battery charger on it but dont go over 2amps, especially if the battery is still in the bike. Modern ecu's are very sensitive to anything over the 14.7v most regulators put out from the stator. One of my friends fried his cars computer trying to jump it... not cheap to fix.

 

You can greatly reduce boosting risk by never having the source vehicle running. That will hold you down to 12.6 volts or so. I still agree there is a risk of damage, depending on the condition of your weak battery.

 

Yep, you can. This Optimate DC to DC unit plugs directly into your bikes pigtail. One end connects to the 12v battery in your vehicle but DO NOT start your car or truck!!!
Just connect the clips to your vehicle’s battery & plug in the pigtail & start your bike. I use this method to charge my battery when it gets low because we don’t have access to AC outlets where we store our bikes. 2020 Street Bob 107 here.

https://optimate1.com/omdc2a/

 

https://optimate1.com/omdc2a/

This Optimate DC to DC unit clips onto your 12v car or truck battery & plugs into your bike’s pigtail. You can use it to jumpstart or charge you bike’s battery.
**DO NOT START YOUR CAR OR TRUCK WHEN USING THIS!!!!
If you don’t have access to AC power, this is a MUST HAVE. I have used it quite a few times.
Optimate DC to DC

 

Ty worked like a charm.

 

Big engine. Be careful. Tried it on a 96ci n skidded half way down the block