USB Charger for 6 Volt System? Looking for Solution

[Skirted]

I don't recall seeing this issue addressed. Has anyone found a solution for USB charger that works on a 6 volt system to power a phone, GPS, etc? I believe the output needed on a USB is 5 volt so suspect there may be something available, but I have not ran across a proven solution. I heard a rumor that a 12 volt car USB charger will work on a 6 volt bike but I am hesitant to try it on a $1000 phone or $500 GPS

[Rioranchopan]

Could you hook up the charger and measure the voltage coming out before connecting your phone.

[chuckthebeatertruck]

I get the question . . .I also just keep smiling to myself that we've gotten to the point where guys on 6v systems are worried about phone charging and having a GPS.

To the answer, almost any 12v charger will work fine but will put out very little amperage.

You can't get around Volts times Watts = Amps

In this case, rather than a 3amp charge coming out; you'd get around 1.25-1.5a at 5v.

That's gonna be fine for small devices or if your phone is mostly off, but if you have a current hungry device; you won't stay ahead of the battery.

If you don't find what you like on AMCA . . . know that this is a common question across the old car world and there are multiple videos/articles from clubs on the topic.

The most common solution - just wire in a regular USB port and live with the lower amperage output.