Our controller is designed specifically for charging two independent battery banks.
Charge controller for dual battery systems
Model EP Duo 12/24V 10A
Model EP Duo 12/24V 20A
Both models offer the following advanced features
Charging of two independent battery banks:
The owner can set charging priority between the two battery banks in steps of 10%. For instance, you can decide that 80% of the solar current should go to the house battery and 20% to the start battery. When one battery bank is full all the power is redirected to the other battery.
Battery optimized charging algorithms:
• Advanced PWM four stage algorithm with bulk, absorption, float and boost (equalization) charging.
• Charging voltages are optimized for the selected lead-acid battery type (liquid, sealed or gel).
• Selectable PWM charging frequency (25, 50 or 100Hz)
• Temperature compensated charging using either a built-in temperature sensor or an optional remote sensor.
Remote display with charging data (option):
• Remote backlit LCD display can be mounted recessed or in a provided frame up to 10 m (33 ft) from the charge controller.
• Display shows charging voltage, actual current, max current and total amp-hours provided by the solar panels.
• Display shows current, minimum and maximum voltage of each battery bank as well as charge provided in amp-hours.
• Other information includes temperature, time, charge priority and frequency settings and troubleshooting information.
Dimensions:
• Charge controller: 6" x 3 1/16" x 1 3/8" (155 x 77 x 35 mm). Weight 8.8 oz. (250 g) for 10A model, 10.6 oz. (300 g) for 20A model.
• Remote display: Cutout hole if flush mounted: 3"(75 mm), face plate 3 3/4" x 3 3/4" x 5/16" .
Frame mounted dimensions 4 1/2" x 41/2" x 1 9/16" (112 x 112 x 40 mm). Weight 5.3 oz. (150 g)
Specifications - Controller:
Charge controller for dual battery systems
Model EP Duo 12/24V 10A
Model EP Duo 12/24V 20A
Both models offer the following advanced features
Charging of two independent battery banks:
The owner can set charging priority between the two battery banks in steps of 10%. For instance, you can decide that 80% of the solar current should go to the house battery and 20% to the start battery. When one battery bank is full all the power is redirected to the other battery.
Battery optimized charging algorithms:
• Advanced PWM four stage algorithm with bulk, absorption, float and boost (equalization) charging.
• Charging voltages are optimized for the selected lead-acid battery type (liquid, sealed or gel).
• Selectable PWM charging frequency (25, 50 or 100Hz)
• Temperature compensated charging using either a built-in temperature sensor or an optional remote sensor.
Remote display with charging data (option):
• Remote backlit LCD display can be mounted recessed or in a provided frame up to 10 m (33 ft) from the charge controller.
• Display shows charging voltage, actual current, max current and total amp-hours provided by the solar panels.
• Display shows current, minimum and maximum voltage of each battery bank as well as charge provided in amp-hours.
• Other information includes temperature, time, charge priority and frequency settings and troubleshooting information.
Dimensions:
• Charge controller: 6" x 3 1/16" x 1 3/8" (155 x 77 x 35 mm). Weight 8.8 oz. (250 g) for 10A model, 10.6 oz. (300 g) for 20A model.
• Remote display: Cutout hole if flush mounted: 3"(75 mm), face plate 3 3/4" x 3 3/4" x 5/16" .
Frame mounted dimensions 4 1/2" x 41/2" x 1 9/16" (112 x 112 x 40 mm). Weight 5.3 oz. (150 g)
Specifications - Controller:
- For 12V and 24V systems (nominal voltage), automatically sensed. Charging voltages given below should be multiplied by 2 for 24V operation.
- Max solar current 10 A for smaller panels or 20 A for larger panels (greater than 200 watts)
- Absorption voltage 14.2V (sealed battery), 14.4V (flooded battery), 14.6V (industrial battery) or
- Boost voltage 30 min 14.4V (sealed battery), 14.6V (flooded battery), 14.8V (industrial battery)
- Float voltage 13.7V (all battery types)
- Max intrinsic power use 4 mA at night, 10 mA when charging
- Protected against short circuits, over-currents, reverse currents and lightning
- Temperature range for use : from -35°C to +55°C
- Temperature compensation -30 mV/°C
- 4 mm2 (10-12 AWG) max wire size terminals to solar panel and batteries
- 1.5 mm2 (16 AWG) terminals for optional remote temperature sensor
- RJ45 connector for cable to optional remote display
- IP22 ingression protection
- Circuit protected against high humidity
- Minimum operating voltage: 8 Volts