Dual Battery Bank Controller
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:
• 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), faceplate 3 3/4" x 3 3/4" x 5/16" (95 x 95 x 8 mm). 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:
• 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), faceplate 3 3/4" x 3 3/4" x 5/16" (95 x 95 x 8 mm). 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
Remote Display
 Remote Solar Panel Controller Display Showing Panel Output and Battery Condition  | This optional remote display provides all the information you need to track the performance of your solar panel. It is particularly useful when optimizing panel tilt using our top-of-pole mounting system.
The display plugs into the Dual Bank Battery Controller. Features include:
|
Remote Temperature Sensor
The optional
remote temperature sensor constantly measures and displays
storage battery temperature so the controller can adjust charge rate
appropriately. This is especially important when using temperature
sensitive gel batteries. This option will increase battery life by
100-200 charge/discharge cycles.
The sensor plugs into the Dual Bank Battery Controller and is attached to the top of a battery in the battery bank.
The sensor plugs into the Dual Bank Battery Controller and is attached to the top of a battery in the battery bank.
#10 Awg Marine Grade PV Wire
The proper wire from the panel to the controller and batteries is important to minimize voltage drop and thus obtain maximum performance from your solar panel. Our wire is made for the marine environment and will provide optimal power throughput with minimal voltage drop.
Conductor: Stranded Tined Copper (84 Strands) Insulation: Halogen free cross linked polyolefin Sheath: Halogen free cross linked polyolefin Nominal Cross-Section: 6mm² Rated Temperature: -40~﹢90℃ Rated Voltage: DC:1.8kV --AC:0.6/1kV Finished cable O.D. 7.1 ±0.1mm Conductor resistance（20℃):≤3.39Ω /km Rated Current: 25~32A Weathering Resistance: UV Burning Behavior: (IEC60332-1) 100% MC4 Compatible Line Connectors
Our solar panels are factory wired with pigtails and MC4 connectors. Thus, you will need a pair of connectors to connect the wire to the solar panel. We will pre-install the connectors to the wire ordered so no tools will be required.
Rated voltage: DC 1000V Junction temperature current:16A Contact resistance:＜0.3mΩ Safety class: class Ⅱ Waterproof grade: IP 65 Temperature range :-40℃～+85℃ Cable standard: 2.5/4/6mm² Flame retardant grade: UL94-V0 Insulation material: PPO Composite contact material: Copper, Tin Plated |  Wire Cross Section |
Product Ordering and Pricing
10 Amp. Dual Battery Controller
Charge two independent battery banks at the same time.
This is an excellent controller for either our 90 or 130 watt solar panel.
This is an excellent controller for either our 90 or 130 watt solar panel.
$
99.00
20 Amp. Dual Battery Controller
Charge two independent battery banks at the same time
$
135.00
Remote Display
Get all the information you need to monitor the performance of your solar panel.
$
95.00
Remote Temperature Sensor
Monitors storage battery temperature. Plugs into Dual Battery Controller
$
27.00
10 Amp. Dual Battery Controller, Remote Display and Temperature Sensor
Purchase the complete solar panel control system and save.
$
205.00
20 Amp. Dual Battery Controller, Remote Display and Temperature Sensor
Purchase the complete solar panel control system and save.
$
245.00
#10
Awg Marine Grade PV Wire
Conductor: Stranded Tined Copper (84 Strands)
Insulation: Halogen free cross linked polyolefin
Sheath: Halogen free cross linked polyolefin
Price per Foot
Insulation: Halogen free cross linked polyolefin
Sheath: Halogen free cross linked polyolefin
Price per Foot
$
1.00
MC4 Compatible Line Connectors
One male and one female connector pre-installed on the wire ordered.
Price per pair
Price per pair
$
5.00
MC4 Compatible T-branch Connectors
Used when connecting two solar panels to a controller
Rated voltage: DC 1000V
Waterproof grade: IP 65
Temperature range:-40℃～+85℃
Cable standard: 2.5/4/6mm²
Flame retardant grade: UL94-V0
Composite contact material: Copper, Tin Plated
Price per pair
Rated voltage: DC 1000V
Waterproof grade: IP 65
Temperature range:-40℃～+85℃
Cable standard: 2.5/4/6mm²
Flame retardant grade: UL94-V0
Composite contact material: Copper, Tin Plated
Price per pair
$
26.00
