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Connecting Solar Panels to Batteries
First and foremost: NO, you cannot directly connect your solar panels to your batteries. While both operate with DC power, a Solar Charge Controller is necessary to ensure the proper flow of current from your solar panels to your batteries.
Solar panels do not provide a constant voltage, which could damage your batteries. A Charge Controller converts the incoming voltage from the panels to the correct voltage and current, ensuring the charge follows the preset charging curves. Depending on the DC voltage of your batteries and the desired number of solar panels, Victron offers a wide range of options.
Connecting Solar Panels to Batteries
First and foremost: NO, you cannot directly connect your solar panels to your batteries. While both operate with DC power, a Solar Charge Controller is necessary to ensure the proper flow of current from your solar panels to your batteries.
Solar panels do not provide a constant voltage, which could damage your batteries. A Charge Controller converts the incoming voltage from the panels to the correct voltage and current, ensuring the charge follows the preset charging curves. Depending on the DC voltage of your batteries and the desired number of solar panels, Victron offers a wide range of options.
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PWM Controllers
The PWM (Pulse Width Modulation) controller is the simplest type of Solar Charge Controller. This controller reduces the voltage from the panels to match the battery's voltage more closely. However, this comes at the cost of reduced efficiency, as the solar panel won't operate at its optimal point.
Available PWM Models:
MODEL | DC VOLTAGE | CURRENT (A) | FEATURES |
BlueSolar PWM-Light | 12 - 24V | 5 to 30A | built-in display |
BlueSolar PWM-Light | 48V | 10 to 30A | built-in display |
BlueSolar PWM-Pro | 12 - 24V | 10 to 30A | programmable |
BlueSolar PWM Charge Controller | 12 - 24 - 48V | 5 to 30A | 2x 5V USB outputs |
BlueSolar PWM Charge Controller Duo | 12 - 24V | 20A | dual battery outputs, 2x 5V USB outputs |
MPPT Controllers
The MPPT (Maximum Power Point Tracking) controller is more technologically advanced than the PWM controller, resulting in higher upfront costs. This controller optimizes its input voltage to extract the maximum energy from the solar panel. It then adjusts this energy to meet the varying voltage requirements of the battery and connected equipment. When selecting the right MPPT, it is essential to consider the maximum PV voltage and current. Victron provides a simple tool to assist you, which you can find here.
MODEL | DC VOLTAGE | CURRENT (A) | FEATURES |
Bluesolar MPPT | 12 - 24 - 48V | 10 to 100A | |
SmartSolar MPPT | 12 - 24 - 48V | 10 to 100A | Bluetooth-enabled |
SmartSolar MPPT RS | 48V | 100 or 200A | Up to 11520 Wp PV capacity |
MPPT Controllers
The MPPT (Maximum Power Point Tracking) controller is more technologically advanced than the PWM controller, resulting in higher upfront costs. This controller optimizes its input voltage to extract the maximum energy from the solar panel. It then adjusts this energy to meet the varying voltage requirements of the battery and connected equipment. When selecting the right MPPT, it is essential to consider the maximum PV voltage and current. Victron provides a simple tool to assist you, which you can find here.
MODEL | DC VOLTAGE | CURRENT (A) | FEATURES |
Bluesolar MPPT | 12 - 24 - 48V | 10 to 100A | |
SmartSolar MPPT | 12 - 24 - 48V | 10 to 100A | Bluetooth-enabled |
SmartSolar MPPT RS | 48V | 100 or 200A | Up to 11520 Wp PV capacity |
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Choosing the right Solar Charge Controller is no simple task, as there are many factors to consider. Are you unsure or looking for extra assistance? Contact us, and we’ll be happy to help you further.