Rayovac Car USB Charger AC Fast Charging Mod
The Rayovac PS70 Dual USB Car Charger is a nice little gadget that I’m using in my car to charge my smartphone. It costs $8 at Walmart. Although its output current is specified at 2A (or 2.1A in newer versions), it charges many devices at a low current of only 0.5A because it doesn’t correctly identify itself as a fast charger. This can be easily fixed.