Blue Sky SB1524iX, Solar Boost 1524iX, 20A/15A 12V/24V MPPT Solar charge controller

Add Ons
Pricing is an estimate, kits are customized for each building variation.
Pricing does not include freight shipping. Request a shipping quote and get a free roof layout.

Flexible, reliable, and ready to work! The SB1524iX, featuring our patented MPPT technology, with a second battery output and IPN connector for remote display, is ideal for RVs and Marine applications. The SB1524iX can manage a 20A at 12V (or 15A at 24V) load output for small off-grid electrification applications. When programmed with an IPN ProRemote or UCM, it is also ideal for PV street lighting with its dusk-to-dawn load control. It can also charge Lithium batteries when programmed with the IPN Pro Remote. Its IPN Network interface can communicate with other Blue Sky Energy charge controllers as a single charging system, allowing increased flexibility and optimization in system design.


The perfect controller for a variety of applications, including marine, RV, Off-Grid, PV street lighting and PV traffic signals.

  • 97% Peak Efficiency
  • MPPT Technology
  • Multi-stage charging battery
  • LED indicators
  • PV array overload protection
  • Reverse battery and panel protection
  • Load output or second battery charge
  • IPN for network and remote display
  • Lithium compatible


Specifications Maximum PV Power (12V/24V): 12V: 270W with 36-cell PV panel / 200W with 60/72-cell PV panel 

                                                            24V: 400W with 72-cell PV panel

Rated Battery (Output) Current (12V/24V) 12V: 20A with 36-cell PV panel / 15A with 60/72-cell PV panel
                                                                                   24V: 15A with 72-cell PV panel

Conversion Efficiency97% (typical @28V / 24A output)

Power Consumption0.2W (typical standby)

Recommended Max Panel Voc at STC45.6V (Max Panel Input 57V) 

Charge ProfileMulti-Stage plus Manual or Automatic Equalization 

Absorption Voltage (12V/24V): 14.2V / 28.4V

Float Voltage (12V/24V): 13.2V / 26.4V

Equalization Voltage (if enabled) (12V/24V): 15.2V / 30.4V

Auxiliary OutputA) Auxiliary Battery Charge 2A (2nd battery). B) Load Control. C) Dusk-to-Dawn (by IPN ProRemote)

Load (LVD) Disconnect/Reconnect Voltage (12V/24V)11.5V/12.6V / 23.0V/25.2V

Maximum Auxiliary Output Current (B or C) (12V/24V): 20A / 15A

Temperature Compensation (by optional Battery Temperature Sensor)-5.00mV/°C/cell correct factor (Range 0.00 to -8.00mV/°C/cell)

Operating Temperature-40°C – 50°C

Maximum Full Power Ambient: 50°C

Environmental Protection: IP20

Weight1.15 lb. (525 g)

Dimensions:5.3x5.3x2.5" (13.5x13.5x6.35cm)

Warranty: 5 years

Customize My Box

Customize My Box

We'll custom design this system for you and calculate how many solar panels you need to meet your goals.
Request customized kit

Solar Calculator

How much do solar panels cost? Use our easy solar panel calculator to get a quick estimate of how many solar panels you’ll need for your home.
Size My Solar System

Free Solar Roof Layout

Our engineers use state-of-the-art software to conduct a PV analysis and draft a free layout of solar on your roof, included with our complimentary quote.
Get My Free Layout

Get Started
With Solar

We'll help you figure out your solar needs!

Fill out the form for a complimentary solar panel quote that includes a custom solar panel layout using satellite technology and a breakdown of solar energy production, federal tax credit and energy offset.