Installer Support

  • MPPT Algorithm
  1. Constant Voltage   Constant voltage maximum power point tracking was one of the first ever created algorithms and has the most limitations. Constant voltage MPPT simply measures the ambient...
Support Article
9/13/2017
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I’m working to design an off-grid DC coupled system. I see online that you sell two Schneider MPPT charge controllers. What is the main difference between the two? This is a larger system with...
Support Question
5/10/2017
  • MPPT Charge Controllers
Selecting an efficient and properly designed charge controller is key to the longevity and efficiency of your entire battery based photovoltaic (PV) system. By optimizing the power coming in from...
Support Article
6/4/2015
  •  AC or DC Coupled
  It seems like a small amount of confusion exists about photovoltaic systems utilizing battery backup features.  What’s the confusion?  DC and AC-coupled systems are many times referred to as...
Support Article
11/28/2014
  • Choosing the Right MPPT Solar Charge Controller
Inverter and Charge Controller - a delicate balance  In an Off-Grid or Hybrid (Grid-tied, with battery back-up) PV system, the Inverter is generally the heart of the system. Inverter size is...
Support Article
7/13/2012
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According to the wiring guide I will need 4/0 cable for my 60-foot run from the 25-amp panel array to the battery room. How do you terminate cable this large to the small terminals on the controller...
Support Question
7/11/2012
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Is there any charge controllers or inverters harden for an EMP. (Electro magnetic pulse)
Support Question
8/18/2011
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I just got a Morningstar Sunlight charge controller. I connected the controller to the PV system and the battery. I also have a 300W inverter directly connected to the battery bank. I am wondering...
Support Question
8/5/2011
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I hear the term a lot for charge controllers, adapters and inverters. Could somebody explain me what Modbus protocol is, and how I can use it?
Support Question
8/5/2011
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We have an Apollo Solar Turbo Charge Controller and when we applied the input voltage battery to the charge controller the display LCD showed, " HIGH INPUT VOLTAGE CLEAR".   What are the steps to...
Support Question
6/16/2011
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We have a Apollo Solar T80 Turbo Charge Controller 80A.  It is a fantastic product, however is the Apollo Solar RShunt 500/50 required to make it work?  Why doesn't it come in the package? PCB sensor...
Support Question
6/14/2011