Cigarette lighter outlet mounted under the seat. Cheaper maybe if you already have plug in chargers, I guess i'm old school but I think usb won't look right on a 1950ish bike.
All back to normal. Probably the stock battery is too weak for the extra fuse (15A)?
A fuse won't change the load on a battery. You didn't mention how you wired it up or where you were taking the power from. Somehow you must've bypassed a switch that is necessary for the starter to function.A hot wire from the battery to the adapter, and a ground wire from it, is all you need. If you want to add a fuse in the hot wire, that's fine. You don't need to get into the motorcycle electrical loom at all.Bare
I have a Battery Tender Jr cable hardwired into my battery. I picked up a 12v outlet with a quick disconnect end off amazon for $8. I keep it in my toolbox with a two port usb cigarette adapter. I have a velcro strap to hold it to the frame when in use. It's quick and easy to deploy when I need it.
I have a Battery Tender on my C5 and never even thought of this bit of brilliance!! Thank you!
Then put on a helmet, because this is going to blow your mind!
... [mind officially blown] ...
....................If you then try to tighten the positive wire and your wrench or screw driver happens to touch any other metal part of the bike it will instantly cause a short along with sparks, loud popping and you filling your pants........
electricity(dc) flows from positive to negative.
.................the wire assembly basically just flops loosely through the big outer hole on the post, and is held in place by the pressure of the rubber cap and the tight seat of the battery against the back of the housing. Because the battery seats so tight, the connection is fine (in fact I wasn't aware of this until just now, and I've ridden almost 2000 miles). Do I need to fix it...I'm not scared of batteries anymore.