6 volt to 12 volt step up converter

[Panhead]

Does anyone have a recommendation for a 6 volt to 12 volt step up converter? I’m looking into getting a Newport 12 volt windshield wiper motor for my 49 B1. I have looked on the internet and I’m seeing some but I would like to hear from someone that has experience with them. 
Thanks

[dgrinnan]

You need to check the amprege requirements of the Newport wiper motor.  I can't speak to how well this unit will work for powering a wiper motor but I installed it to power a cigarette lighter style accessory plug so I can run 12v accessories such as a dash fan and a cell phone charger.  It works well for those.  It will support 10 amps.  $25.

 

https://www.amazon.com/gp/product/B0BQJ4G77B/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Edited November 11, 2024 by dgrinnan

[Panhead]

Thanks dgrinan. I messaged Newport once and never received a response. I think that even if that unit is rated 10 amps, it might not last long at a constant draw. And a motor that is moving a couple of wipers across a windshield is probably going to be pulling more than a few amps.

[Sniper]

The stock 6 volt wiper motor in my 51 Plymouth is protected by a 10 amp fuse. If you double the voltage you half the amperage. My biggest concern though is your setup is 6 volt positive ground and your motor wants 12 volt negative ground and unless that motor is isolated from chassis ground odds are you're going to short it out.

[TodFitch]

25 minutes ago, Sniper said:

The stock 6 volt wiper motor in my 51 Plymouth is protected by a 10 amp fuse. If you double the voltage you half the amperage. My biggest concern though is your setup is 6 volt positive ground and your motor wants 12 volt negative ground and unless that motor is isolated from chassis ground odds are you're going to short it out.

What kind of DC motor is it?

 

If it is an old fashioned one with field coils then it will be polarity insensitive and will run forward regardless of how it is hooked up. The direction of rotation is based on the relative wiring of the field and the armature, not on the polarity of the input power.

 

If it is a modern one with permanent magnets then there will be a problem.

[Panhead]

The Newport wiper motor would be a new 12 volt motor. 
 

I think I’ll keep looking for an old 6 volt mopar motor. Step up converters may be ok for a radio but when it’s raining or snowing, I don’t want to count on one for my wipers.