Review on ⚡️ Waterproof Metal Dual USB Car Charger Socket with Voltmeter & Switch - Fast Charge 36W Power Outlet for Car, Boat, Marine, RV, ATV, Truck, and More - Quick Charge 3.0 Technology Included by Brandon Pratt

Hardwired to the battery so I can charge my Cardo SLIM communication system from the bike battery when I'm not riding. It's mounted on a horizontal section under my handlebars, allowing the helmet to be charged at the mirror with a short USB cable (magnetic type). The built-in switch turns off the device, so the battery should not be discharged when the device is switched off. If you get a volt meter and charging connectors. On/Off can be pressed with the lid open or closed. My mounting location makes it difficult to see while driving, but this was my choice. I left it on after it charged my cardo for days with no action. Also allows me to charge my phone and battery during the tour. And look at the tension too, even through the cap. This device does a good job of fast charging from a battery pack or my Samsung S20 phone. I've gone camping and horseback riding in the rain and had no issues with the device's lid. Considering I installed it open and facing up, it's nice to know it won't fail after a few days of riding in the rain. I didn't test it with the lid open like it rained during the night while I was charging something. I connected my wire to the SAE connector and then routed the longer wire back to my battery wire.