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12V, 20A Solar Charge Controller (MPPT) for LiFePO4 Batteries (SC-1220JU)

12V, 20A Solar Charge Controller (MPPT) for LiFePO4 Batteries (SC-1220JU)

$89.99

Price: $89.99

The Bioenno Power SC-1220JU 12V, 20A Solar Charge Controller is an advanced intelligent multi-stage MPPT solar charge controller featuring our proprietary CC/CV (Constant Current/Constant Voltage) technology designed specifically for LiFePO4 (lithium iron phosphate) batteries. Designed for 12V systems and handling up to 20A, the controller uses a Buck Conversion Circuit and further uses an MCU to adjust the solar panel to a working point in order to make the solar panels output maximum power.  When the working point of the solar panels deviate from the maximum power point, the MCU will adjust the solar panels working point based on an MPPT calculation to make the solar panels provide their maximum power point.  Compared with PWM controllers, this MPPT controller can increase the output power of the solar panels by 5% ~ 30%. The output power increases proportionally by various factors, such as the solar panel properties, light intensity, and humidity. 

Bioenno Power smart technology: the Bioenno Power SC-1220JU features our smart technology intelligent chipset that will auto-adjust this solar charge controller to the correct setting. It's literally plug and play. Attach your panel, attach your battery, attach your load and the solar charge controller will take care of the rest! Our product takes all the guesswork out of portable solar. It works so you don't have to. 

 

This solar controller is intended for 12V LiFePO4 Batteries Only. Please note that for any solar setup in which you are using a panel in conjunction with a battery and/or a load a solar charge controller is absolutely necessary. DO NOT plug a panel directly into your battery or your load!  Do not use the controller with a solar panel alone -- a LiFePO4 battery is required for operation! 

 

User Manual for 12V, 20A Solar Controller (Model SC-1220JU)

 

OPERATION
  • Mount the controller on the wall and fasten the screws.
  • Check whether the battery voltage and solar panel array voltage is within the requested range.
  • Connect the battery to the controller
  • Connect the load to the load terminal
  • Connect the solar panel array to the input of the solar controller
  • To switch the load on, hold the button for 3 seconds.
  • To switch the load off, hold the button for 3 seconds.

 

STATUS CODES

LED

STATUS

MEANING

SOLAR (RED)

OFF

PV Voltage is Low

 

ON

The solar controller is conducting MPPT Charging

BLINKING EVERY 2 SECONDS

The solar controller is in absorption charge mode

BLINKING EVERY 1 SECONDS

The solar controller is in float charge mode

BLINKING EVERY 0.5 SECONDS

The solar controller is conducting PV Overvoltage Protection

BATTERY (GREEN)

OFF

The battery is disconnected

 

ON

The battery is under normal operation

BLINKING EVERY 2 SECONDS

Undervoltage Protection is engaged

BLINKING EVERY 1 SECOND

Overvoltage Protection is engaged

BLINKING EVERY 0.5 SECONDS

Overtemperature protection is engaged

LOAD
(RED)

OFF

Load is off

 

ON

Load is on

BLINKING EVERY 2.2 SECONDS

High Temperature Sensor Error

BLINKING EVERY 1 SECOND

Overload protection is engaged

BLINKING EVERY 0.5 SECONDS

Short-Circuit Protection Engaged on the Load

 

FAULTS AND REMEDIES

FAULT

PHENOMENON

CAUSE/REMEDY

Battery Voltage is Too low

Load  Light Off

Charge Light On

Check the battery voltage and manually recharge the battery if necessary. 

Battery Voltage Too High

Load Light Off

Charge Light Off

Check the battery voltage and check if there are any additional charging sources if present

PV Voltage Too High

Load Light On

Charge Light Off

Check the PV System configuration.  The PV open circuit voltage is beyond the limits

Excessive Load Current

Load Light Off

Charge Light On

Reduce the load current at the load output.  The load may be causing current peaks.

Short Circuit at the Load Output

Load Light Off

Charge Light On

Check if there is a short circuit at the load output

Controller Temperature is Too High

Load Light On

Charge Light Off

Allow the controller to cool down.  Check for possible causes of overheating.  Reduce the charge current.  Make sure the controller is adequately ventilated.

Inside temperature Sensor Error

Load Light On

Charge Light On

Disconnect the load, solar modules, and batteries.  Re-install the controller

 

SPECIFICATIONS

Maximum PV Voltage

< 70 VDC

MPPT Voltage Range

12V to 70V (For use with 12V Solar Panels and 12V batteries)

System Voltage

This controller must be used only with 12V LiFePO4 batteries

12V Nominal for 12V LiFePO4 Batteries

Maximum Battery Voltage

16VDC for 12V LiFePO4 Batteries

Maximum Charge Current

20A

Maximum Load Current

20A

Charging Control Mode

2-stage (CC,CV)

Constant-Voltage (CV) Charge

14.4VDC for 12V LiFePO4 Batteries

End of Charge Current

0.02C

Charge Recovery Voltage

13.6VDC

Load Disconnect Voltage (LVD)

11.0VDC

Load Reconnection (LVR)

12.0VDC

Dimensions

119 mm x 188 mm x 55 mm (L x W x H)

Weight

0.8 kg

Degree of Protection

IP32

 

Please contact sale@bioennopower.com if you have any questions about compatible batteries for this solar controller.

 


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