Review on 🔌 Convenient USB A Male to 12V Car Cigarette Lighter Socket Female Converter Cable - 2-Pack by Craig Pham

I used them to power a gourmia mini fridge (peltier type) with a 20,000mah solar cell phone battery. The fridge lasted 7.5 hours on a full charge and had no issues from start to finish. Keep in mind that this device is limited to the USB side as the USB port does NOT supply as much CURRENT (amps) as a regular cigarette socket in your car or truck so you won't be able to do things like VACUUM or PUMPS. with this. This is NOT an adapter error, but a DESIGN LIMITATION of the USB connector. If possible, use a higher-amperage USB 3.0 port (usually blue or with a lightning bolt icon) or a high-power adapter (not that crappy $10 power bank you use to charge your iPhone with a cracked screen). or have lost the original charger). If some or all of what I just said sounds Chinese to you, then these adapters are NOT a good choice for your needs.