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Charge Controller

Features
• PWM (pulse width modulation) charging
• Temperature compensation of charging voltage
• Current compensated low voltage disconnect
• Comprehensive electronic protections:
o Short circuit
o Overvoltage
o Load overcurrent
o Polarity reversal; solar module, load , battery
• Schottky blocking diode
• LED indicators for charging, battery charge status and low voltage disconnect
• Three years warranty

Technical data
• System voltage 12 V
• Operating temperature range -10 oC - +50 oC
• Storage temperature range -20 oC - +80 oC
• Current consumption 3 mA
• Max continuous panel current 5 A
• Max continuous load current 5 A
• Float charge voltage 13.8 V
• Boost charging voltage 14,5 V
• Temperature compensation +/- 4 mV / ºK / cell (built-in sensor)
• Load disconnect < 11,0-11,5 V load dependent
• Automatic reconnect 12.5 V

Mechanical data
• Protection class IP 22
• Weight 160 g
• Dimensions (W x H x D) 146X90X33 mm
• Connectors (stranded/solid) 16 mm2 / 25 mm2

Naps NC5
Price; 131,- € (inc. vat)

Naps NC 5/15/NC30

Features
• For either 10 or 30A current (NC15/NC30)
• Automatic selection of system voltage (12/24V)
• Electronic fuses and protection
• Charging procedure based on either battery state of charge or on battery voltage
• Four phase charging
• PWM (pulse width modulation) charging
• Temperature compensation of charging voltage
• Compensation of voltage loss in cabels
• Coated circut board to protect from moisture
• Battery type setting (gel/liquid)
• Three years warranty

Display
• Clear symbolic display
• Battery state of charge (%)
• Battery voltage (V)
• Module current (A)
• Charging current (A)
• Load current (A)
• Battery recharging meter (Ah)
• Battery discharging meter (Ah)
• Deep discharge warning

Technical data
• System voltage 12 V or 24 V; automatic selection
• Bat. voltage range for 12 V 6,9 V – 17,2 V
• Bat. voltage range for 24 V 17,3 V – 43,0 V
• Operating temperature range -10 oC - +50 oC
• Storage temperature range -20 oC - +80 oC
• Current consumption 12 V: ca. 12,5 mA, 24 V: ca. 15,8 mA
• PWM-frequency 30 Hz
• Maximum input voltage 45 V
• Minimun battery voltage 6,9 V

Current ratings
• Max continuous panel current 10A (NC10), 15 A (NC 15), 30 A (NC 30)
• Max continuous load current 10A (NC10), 15 A (NC 15), 30 A (NC 30)

Charge volatge settings Gel battery (GEL) Flooded (open) battery (Li)
• Float charge voltage 14,1 V / 28,2 V 13,9 V / 27,8 V
• Boost charging, 2 hours 14,4 V / 28,8 V 14,4 V / 28,8 V
• Equalization charging, 2 hours 14,7 V / 29,4 V
• Temperature compensation +/- 4 mV / ºK / cell (built-in sensor)

Activation of charge modes SOC-control Voltage control
• Float charge regime SOC: >= 70 % >= 12,7 V or >= 25,4 V
• Boost charge SOC: 40 % - 69 % 11,7–12,4V or 23,4–24,8V
• Equalization charge SOC: < 40 % < 11,7 V or 23,4 V
30 day equalization charge If boost or equalization charge has not been activated during past 30 days.

Low voltage disconnect SOC-control Voltage control
• Warning SOC < 40 % < 11,7 V / 23,4 V
• Disconnect SOC < 30 % < 11,1 V / 22,2 V
• Automatic reconnect SOC > 50 % > 12,6 V / 25,2 V

Overtemperature protection
• Load disconnect > 85 oC
• Load reconnect < 75 oC

Mechanical data
• Proetection class IP 22
• Installation Vertical
• Weight 350 g
• Material Recycleable plastic
• Dimensions (W x H x D) 187 mm x 96 mm x 44 mm
• Connectors (stranded/solid) 16 mm2 / 25 mm2

MaxPower Charge Controller
MaxPower is a Maximum Power Point Tracking (MPPT) charger, designed specifically for use in temperate and colder climates.

Main characteristics
- Maximum power point tracking (MPPT)
- Three charging modes for optimum operation and
battery life: MPPT, boost and float
- Temperature compensation
- Low current consumption
- Battery type selection
- Internal blocking diode
- Good electrical protection
- Large, robust screw terminals

Three different charging modes
MaxPower's maximum power point, float and boost charging modes maximise the power from the solar module and keep the battery as fully charged as possible, at the same time minimising battery water loss and corrosion caused by overcharging. Adischarged battery receives the full benefit of maximum power point charging, followed by float charging to ensure the battery charge is fully restored. If the battery has been very deeply discharged, it will be boost charged to ensure a fullrecharge.

Illustration of increased charging with a 44 cell module in typical Nordic country conditions
If the module maximum power point is more than 1.5V higher than the battery charge voltage, MaxPower operates in MPPT mode, giving the highest possible charging current. In the example shown in the graph, MaxPower gives 30-40% increased daily charging to a deeply discharged battery and 10-20% more to a nearly-charged battery in most months. For the most accurate operation, MaxPower should be mounted close to the battery, so that both are at the same temperature and the losses in the battery cables are small.

MaxPowerTechnical information
- Nominal system voltage 12V
- Maximum input voltage 45V (module open circuit voltage)
- Maximum input current 7A (module short circuit current)
- Maximum module power 125W
- Maximum output current 10A continuous
- Operating temperature range -25°C to +40°C
- Efficiency (typical) 90 to 94%
- Size (h*w*d) 145 x 110 x 50 mm
- Weight 0.7 kg
- Protection class IP20
- Battery current drain 6 mA typical
- Float charging voltage @ +25°C 14.2V
- Maximum boost charge voltage @ -25°C 15.6V
- Charge voltage temperature compensation -24mV /°C

Max Power Charge Controller
Price; 192,- € (inc. vat)