Industrialgrade main control chip for reliable, durable operation in demanding environments. Largescreen LCD display provides clear, realtime information including: Charging current Discharging current Accumulated energy generation and discharge System temperature Light control status and delay control status Adjustable charging and discharging parameters Poweroff memory Dual USB outputs with a maximum current of up to 2.5 A Complete 3stage charging management Use scenarios: Home workshop or garage battery monitoring: track charge and discharge currents, monitor temperature, and adjust charging parameters for battery health, with the ability to retain settings after poweroff. Offgrid or solar charging setup: manage charging cycles and power USB devices while monitoring energy flow and temperature, using light and delay controls for convenience. Small portable energy system: use the dual USB outputs to power devices while keeping an eye on accumulated energy and charging performance with reliable 3stage charging management.