Review on 🌞 Intelligent 30A Solar Charge Controller for 12V/24V Solar Panels with Dual USB Ports, LCD Display, Timer Setting, and Adjustable Parameters for ON/Off Hours by David Lesperance

None of the buttons worked to adjust the tension, float etc. always pushed 15+ volts until the sun went down and of course it blew my battery a week before my new charger arrived. I have an Outback Flexmax on my boat with a 48v 300ah lithium battery and it was the smaller 12v system that I used for 20 years before switching to this one. So I threw it in the trash and got a Renology and a new battery. dear mistake