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Blue Sky MPPT Solar Charge Controllers

Increase your solar panel output up to 30% with a MPPT photovoltaic charge controller. Patent pending technology gives this charge controller the capability to use all the power your panels are capable of putting out. You could actually consider using less panels! When your batteries are low and you have sun, you will get maximum power out of your panels. Under boost conditions it is like having an extra solar panel, but without the cost and the extra weight.

Models from 15 to 50A Capacity are available.

Charge Battery Maximum Maximum   Maximum Charge Digital Remote Load Lighting Agency Typical Applications
Controllers Voltage PV Voc @ PV Power @ Vbat / Vpv ? Output Algorithm Display Display Control Control Approval  
(BSE p/n)   STC j     Current     Option        
Solar Boost 2000E
(SB200E)
12V 24V 340W 12V/12V 25A 2-stage, plus Equalization  Yes No No No ĺ Small to medium 12V systems; RVís, boats, small off grid cabins & small industrial.
                         
Solar Boost 3000i
(SB3000)
12V 40V 400W
290W
12V/12V
12V/20V
-30A
-22A
3-stage, plus Equalization Yes Yes Yes 20A Voltage or  AH based Yes ĺ Small to medium 12V systems; RVís, boats, cabins & industrial.  Aux. output for load control or 2nd battery charge.  IPNô network coordinates multiple units.
                         
Sun Charger 30 (SC30, SC30-LVD) 12V 24V 450W 12V/12V 30A 3-stage, plus Equalization Yes No LVD option 50mA drive -LVD option 50mA drive CE Entry level PWM (non-MPPT) controller, small to medium 12V systems; RVís, boats, small off grid cabins & small industrial.
                         
Solar Boost 50L ** (SB50L & DL) **no longer in production 12/24V 45.6V 670W

1340W
12V/12V
12/20V
12/24V
50A 3-stage, plus Equalization Optional Yes No No ETL/cETL CE, FCC Medium to large 12/24V systems; larger RVís & Boats, on or off grid homes & larger industrial.
                         
Solar Boost 3048L
(SB3048L & DL)
24/48V 112V 800W


1340W
 
24V/24V
24V/48V
24V/60V
48V48V
24V60V
30A 3-stage, plus Equalization Optional Yes No No ETL/cETL
VE, FCC
Medium to large 24/48V systems; on or off grid homes, larger industrial & telecomm.
                         
Solar Boost 3024iL (SB3024iL & DiL) 12/24V 45.6V 540W
400W

800w
12V/12V
12V/20V
12V/24V
24V/24V
-40A
-30A
-30A
-30A
3-stage, plus Equalization Optional Yes 20A
Voltage or
AH based
Post-dusk &
Pre-dawn
timers
ETL/cETL
CE, FCC
Medium 12/24V systems; RVís, boats, cabins & industrial.  Aux. output for load control or 2nd battery charge.  IPNô network coordinates multiple units for larger systems.
                         
Solar Boost 1524iX (SB1524iX) 12/24V 45.6V 270W
200W

400W
12V/12V
12V/20V
12V/24V
24V/24V
-20A
-15A
-15A
-15A
3-stage, plus
Equalization
No Yes 20A / 15A
Voltage or
AH based
Post-dusk &
Pre-dawn
timers
ĺ Medium 12/24V systems; RVís, boats, cabins & industrial.  Aux. output for load control or 2nd battery charge.  IPNô network coordinates multiple units for larger systems.
                         
Solar Boost 2512i-HV
(SB2512i-HV)
Solar Boost 2512iX-HV
12V 40V 340W
270W
12V/12V
12V/20V
-25A
-20A
3-stage No Yes No No ĺ Small to medium 12V systems; RVís, boats, cabins & industrial.  Includes limited IPN network interface to support IPN displays.
                         
Solar Boost 2512iX-HV
(SB2512iX-HV)
Replaces SB2512iX
 
12V 40V 340W
270W
12V/12V
12V/20V
-25A
-20A
3-stage, plus
Equalization
No Yes 25A
Voltage or
AH based
Post-dusk &
Pre-dawn
timers
ĺ Small to medium 12V systems; RVís, boats, cabins & industrial.  Aux. output for load control or 2nd battery charge.  IPNô network coordinates multiple units for larger systems.

Maximum Power Point Tracking (MPPT) extracts the maximum amount of available power from a photovoltaic (PV) array. A battery-based PV system normally only harvests about 65% to 95% of the power available from the PV array. By using an MPPT-type charge controller almost all of this previously un-harvested power is made available for charging the battery bank.

Solar Boost controllers are significantly oversized, thus reducing the stress on the components and greatly increasing reliability. When the controller is at full output power, the FET's (main power transistors) and other power related components are designed to operate at less than 50% of the maximum design values for the components. In fact, the FET's in the SB50 are capable of handling up to 74 amps each but RV Power Products chooses to operate them at a maximum of 12.5 amps each!

Patented Maximum Power Point Tracking (MPPT) technology allows Solar Boost products to increase charge current up to 30% or more compared to conventional charge controllers.

The SB50 and SB3048 are designed to electronically limit the maximum output current to their rated values; 50 amps for the SB50, 30 amps for the SB3048. These units automatically reduce the amount of power they extract from the solar array to insure current limits are not exceeded. The SB controllers do not require the 130% to 156% de-rating. RV Power Products recommends limiting the rated output current of the array (Imp) to about 73% of the rated output of the controller.

RV Power Products designed their MPPT circuit around an interesting characteristic of PV modules. The voltage differential between the Open Circuit Voltage (Voc) and Maximum Power Point Voltage (Vmp) stays relatively constant over the temperature range PV modules typical experience. As the module gets hotter both the Voc and the Vmp are reduced at the same rate and the voltage differential between them remains relatively constant. This allows the SB controller to track the actual Vmp at any module temperature simply by momentarily testing the Voc of the array and then operating the array at the Voc minus the voltage differential.

 

An optional digital display is available that displays Battery Voltage, Solar Panel Current and Output Charge Current. The SB controllers allow for both an optional front panel mounted display and/or remote display. Both displays can be installed on the same controller. These displays provide very accurate readings, unlike displays on some other popular controllers, and are very popular with the end user because they can see actual boost in charging amps moment to moment.

Applying the proper charge voltage is critical for achieving optimum battery performance and longevity. The ideal charge voltage required by batteries changes with battery temperature.  The battery temperature sensor allows the charge controller to continuously adjust charge voltage based on actual battery temperature. Temperature compensation of charge voltage assures that the battery receives the proper charge voltage as battery temperature changes during normal operation.    

With out temperature compensation charge voltage could be too low at low battery temperatures leading to chronic under charging and battery damage due to Sulphation. At high battery temperatures charge voltage would be too high leading to excessive water loss and undue degradation of the positive plate. Both of these conditions can impair battery performance and shorten battery life.

Link to the BlueSky Energy web site

Features and Benefits

  • Patented MPPT Technology Increases Charge Current Up To 30% or More!
  • 50A/24V Ratings Support Large Solar Module Arrays
  • Three Stage Charge Control Optimizes Charge Parameters to Battery Size & Type
  • MPPT Power Converter Can Charge Lower Voltage Battery from Higher Voltage Array
  • Electronic Current Limit Prevents Overload or Nusiance Fuse Blow
  • Available Digital Display Monitors PV Charge Performance
  • Durable Powder Coat Finish & Conformal Coated Electronics Resist Corrosion
  • Fully Protected Against Excess Current, Temperature, Transient Voltage & Polarity
  • Full 36 Month Limited Warranty, Optional Extended Coverage Available
  • ETL Listed to UL STD. 1741
  • Certified to CAN/CSA STD.
  • E335-1/2E, CE Labeled

 

For more information on renewable energy, wind turbines and other off grid systems call 1-888-810-4709 or email info@stratenergy.ca

 

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Last modified: September 21, 2017