Re: Cigar Lighter Socket USB Adapter

Posted by HH56 On 2021/9/6 19:38:17

I don't think you will find any compact adapters that plug into a cigar lighter socket that do not require at least a 12v input and even more doubtful you will find one that will work on positive ground. The circuitry needed to drop and regulate the input voltage to USB 5v output and keep it at very tight voltage and current parameters will be polarity sensitive and wired to only accept a negative ground.

Have you considered something like this?https://www.snydersantiqueauto.com/ProductDetail/A-14306_USB-CHARGING-PORT?fromCategory=SearchByKeyword