The Coleman 68022 is a 30A digital charge controller that goes between your solar panel and your 12V battery to prevent over-charging or over-discharging your battery.Features and Benefits

• Protect Your Battery from Overcharge and Discharge
• For Use with 12 Volt Solar Panels and Batteries Only
• Handles up to 30 Amps of Array Current
• Handles up to 450 Watts of Solar Power
• Maintenance Free Protection of Your Solar Panel and Batteries
• Maintain 12V Batteries in a Fully Charged State
• Dimensions (L x W x H): 8 3/4" x 10 1/4" x 2 5/8" (22.5 x 26 x 6.5cm)
• Weight: 0.85 lbs
• Manufacturer's Part Number: 68022

Technical Specifications:

• Electrical
  • Normal Input (Solar Cell Array Voltage): 17-22 volts
  • Maximum Input: 25 volts
  • Maximum charging current: 30 amps
  • Current Consumption Without Battery: 35mA Max
  • Current Consumption Without Array: 25mA Max
  • PWM constant voltage for Gel Cell battery: 14.1 volts ±0.4
  • PWM constant voltage for Lead Acid battery: 14.5 ±0.4
  • Float mode voltage: 13.4 ±0.4
• Battery Condition Display
  • LED Color: Indicated Range
  • LOW (Red): <11.5 ±0.4
  • FAIR (Yellow): 11.5 to 12.5 ±0.4
  • GOOD (Green): >12.5 ±0.4
  • LCD Meter Accuracy DC voltage: 1.25%
  • LCD Meter Accuracy DC current: 3%
• Protection
  • Over temperature protection engages at (stop charging): >80°C (176°F)
  • Over temperature protection resets at (restart charging): <65°C (149°F)
  • Operation Temperature: -5° to 50°C (23° to 122°F)
  • Storage Temperature: -10° to 70° C (14° to 158°F)
  • Operation Humidity Range: 0 to 80% RH

Click Here for Instruction Manual