Small Solar Charge Regulator for Pb-Accumulators

• panel up to 50 W
• load up to 150 W (240 W with suitable mosfet)
• optional usb-power-charger (up to 2.5 A)
• shunt regulation
• hysteresis charge (no PWM)
• battery low voltage protection, auto load off
• load schedule, auto load on
• auto standby, power save
• lcd display
  - battery voltage + current
  - solar + load current
  - solar input in Ah, subtotal and total
• led flash codes
• calibration (stored in eeprom)
  - charge voltages
  - zero current
  - current correction
  - display contrast