How our Charge Controller Works
At the heart of the Apollo Solar Charge Controller is a very efficient DC-DC Power converter which transfers over 98.5% of the Panels energy to the system over a very wide power range. The Charge Controller is the "Brain" and the most important part of the Solar Power System.
Our customized Dual Mode Maximum Power Tracking routine (MPPT) adjusts the power transfer about 6000 times per second to yield maximum performance even in partial shading of the Solar Panels. Cloudy days produce power too - Our Charge Controllers get every last watt possible from the panel at all times. The result is up to 2x the Power that a PWM charge controller would deliver with a given solar panel configuration.
* PWM Charge Controllers don't do Power Conversion so they waste a lot of available power that goes unused or turned into heat. *
When the Sun rises in the morning the Solar Charge Controller switches from NIGHT mode to DAY mode and transfers the previous day’s totals to memory. The Power Stage is turned on and Solar energy begins to charge the system battery. The LCD display cycles through the daytime parameters… Battery Voltage, Panel Voltage, Amps output, Power Output, Peak Power, Amp Hours, and Internal Board Temperature.
After Sunset when the panel voltage drops the Power Stage is turned off and the LCD Display switches to NIGHT mode.
The LCD Display cycles through the Battery Voltage, All time Maximum Power, and the last 7 Days Amp Hour Totals.
There are only 4 parts to a Solar Power System: Panel , Charge Controller, Battery, and DC to AC inverter for 120 / 240 Volt Power
The Solar Charge Controller is designed for many years of reliable operation using components rated for 125°C operation which is about 60°C ABOVE the highest operating temperature under normal conditions. The Controller is protected from reverse battery, input short circuit, reverse power flow, over current, over temperature, and reversed Solar Panel connections. The Optimum Performance for 12 volts is with a 60 cell panel but the Charge Controller will work well from 36 to 80 cells with very high performance. 24 volt operation requires 72-80 cells for best performance.
The Ra 25 Watt 2 Amp Charge Controller operates in a similar Manner but is a Buck-Boost MPPT and has 30 Volt Maximum and 10 volt minimum Solar Voltage. Output is for 12 volts only.
Our customized Dual Mode Maximum Power Tracking routine (MPPT) adjusts the power transfer about 6000 times per second to yield maximum performance even in partial shading of the Solar Panels. Cloudy days produce power too - Our Charge Controllers get every last watt possible from the panel at all times. The result is up to 2x the Power that a PWM charge controller would deliver with a given solar panel configuration.
* PWM Charge Controllers don't do Power Conversion so they waste a lot of available power that goes unused or turned into heat. *
When the Sun rises in the morning the Solar Charge Controller switches from NIGHT mode to DAY mode and transfers the previous day’s totals to memory. The Power Stage is turned on and Solar energy begins to charge the system battery. The LCD display cycles through the daytime parameters… Battery Voltage, Panel Voltage, Amps output, Power Output, Peak Power, Amp Hours, and Internal Board Temperature.
After Sunset when the panel voltage drops the Power Stage is turned off and the LCD Display switches to NIGHT mode.
The LCD Display cycles through the Battery Voltage, All time Maximum Power, and the last 7 Days Amp Hour Totals.
There are only 4 parts to a Solar Power System: Panel , Charge Controller, Battery, and DC to AC inverter for 120 / 240 Volt Power
The Solar Charge Controller is designed for many years of reliable operation using components rated for 125°C operation which is about 60°C ABOVE the highest operating temperature under normal conditions. The Controller is protected from reverse battery, input short circuit, reverse power flow, over current, over temperature, and reversed Solar Panel connections. The Optimum Performance for 12 volts is with a 60 cell panel but the Charge Controller will work well from 36 to 80 cells with very high performance. 24 volt operation requires 72-80 cells for best performance.
The Ra 25 Watt 2 Amp Charge Controller operates in a similar Manner but is a Buck-Boost MPPT and has 30 Volt Maximum and 10 volt minimum Solar Voltage. Output is for 12 volts only.
Contact us at: DIYSolarForU@gmail.com