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Phocos CXNup40 Charge Controller 12/24V, 40A


SKU: CXNup40 Category:

Volume discount pricing

Call for volume pricing when ordering multiple charge controllers.

The Phocos CXNup10 charge controller provides smart charging for your 12V or 24V batteries. Use the CXNup controller for negative grounded systems (as opposed to the CX controllers for positive-grounded systems).

The CXNup features a backlit LCD with a user-friendly interface that shows real-time battery voltage, battery state-of-charge (SOC) in percent, charge and load current, and system status. The controller’s built-in memory stores up to 2 years of system performance data.

Phocos CXNup controllers feature optional acoustic battery alarms and a programmable street light settings. A USB port on the side of the controller allows the user to charge cellphones, tablets, cameras, and other USB devices. The controller comes enabled for connectivity to the PhocosLink software via the MXI interface.

Phocos CXNup charge controller features:

USB charging port
Data logger information can be exported
Load status indication
Touch keys ensure long-lasting operation and eliminate mechanical button failures
Prepared for 12 or 24 V battery charging
Suitable for charging systems up to 1.4 kW
2-year data logging
User-friendly LCD shows extensive system information
Four-stage PWM charging algorithm with integrated temperature compensation
Full electronic protection
Programmable load function suitable for street lights
Corrosion-resistant screw terminals
Programmable battery type
Compatible with LiFePO4 batteries (no communication to the batteries)

Phocos CXNup40 charge controller technical specs:

Phocos model:  CXNup 40
System voltage: 12/24 Volt DC auto recognition
Max. charge current: 40 Amp
Float charge: 13.8/27.6 V (25 °C)
Main charge: 14.4/28.8 V (25 °C), 30 min. (daily)
Boost charge: 14.4/28.8 V (25 °C), 2 h
Equalization: 14.8/29.6 V (25 °C), 2 Std.  activation: battery voltage <12.1/24.2 V (at least every 30 days)
Low voltage disconnect:  10.5 V  / 21.0 V
Max solar panel voltage: 30 Volts (12ZV systems) / 50 Volts (24V systems)
Grounding: Negative ground
Operating ambient temperature: −40 to +60 °C
Battery type: lead acid (GEL, AGM, flooded), LifePo4


Phocos AG

Phocos was founded in Germany in the 1980’s. The original founders were engineers and researchers who studied renewable energy at the Ulm University of Applied Sciences. They mainly focused on off-grid applications, for use in remote areas with no connection to the electric grid. As the demand for renewable energy sources grew in remote areas, so did their range of innovations. Phocos maintains a priority to develop eco-friendly, simple to use, energy saving products that are also durable with high-end technology. Applications of their products range from rural, recreational, residential, to industrial. Phocos North America is located in Tucson, AZ. Phocos also has 12 other offices around the world.
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Phocos CXNup Charge Controller


Specs for Phocos CXNup Charge Controller 10, 20 and 40 Amps

Phocos Product Warrranty


Warranty information for Phocos charge controllers