Browsing Banggood I found this well spec'd USB car charger costing only $1 shipping. Here we tear down the KUULAA KL-CD09-P (PD&QC 3.0) and look what allows it to deliver 42W in such a small package. Power density looks phenomenal, even if the thermal situation is a tad marginal, it should serve well charging phones and cameras on the go quickly.

Here are the specs and a commission-free link to the product page:

[ Ссылка ]

Technical Parameters:
Input: DC 12-24V
Certification: CE, FCC, RoHS, MSDS

QC+PD Output
USB-A Output: 5V 4.5A/ 9V 2A/ 12V 1.5~2A
USB-B Output: 5V 3A/ 9V 2A/ 12V 1.5A

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