Review on Efficient Sunforce 58104 3.5W 12V Solar 🔋 Battery Trickle Charger with OBD-II Connector for Optimal Charging by Joseph Mathis

No LED display to show that the device is producing electricity! Without an LED indicator or light, this is really bad, as you'll have a dead battery before you know the device isn't working. I've had other brands (1.2 volts) with an LED indicator and no light means they didn't work and failed. One more thing, I was tempted to use the suction cups that came with the device, after squeezing the device with the suction cups installed on the device, it fell out the window before I fully retracted my hand. The suction cups are too small and pop right out of the mounting holes. With no indication that it produces electricity, I will not use it in the country or off-road under any circumstances! Sunforce 58104 3.5W 12V Solar Charger with OBD II Connector