MPPT controller

MPPT controllers continuously optimise the voltage of solar panels toextract maximum power, even when conditions change. They are particularly suitable for residential, agricultural and industrial installations seeking high efficiency and a reliable power supply.

To choose, check the battery voltage (12V / 24V / 48V) and then size the current (in A) according to your panels and usage.

If you want monitoring, look at models with built-in Bluetooth (e.g. Victron SmartSolar).

To compare with a simpler solution or for storage, see also:

PWM controllers
Lithium batteries (LiFePO4)

Choose in 30 seconds

  • Objective: if you want maximum power when conditions change, go for MPPT.
  • Battery voltage: check 12V / 24V / 48V depending on your equipment.
  • Current: size in A (e.g. 10A, 30A, 60A) according to your panels and usage.
  • Functions: need connectivity/monitoring → look at models with built-in Bluetooth (e.g. SmartSolar).
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FAQ - MPPT solar charge controller

1. What is an MPPT solar controller used for? +
An MPPT controller continuously optimizes PV voltage to extract maximum power, even when conditions change.
2. When should I choose MPPT rather than PWM? +
If you want maximum PV power under changing conditions, MPPT is usually the right choice. For comparison: PWM controllers.
3. How do I choose 12V / 24V / 48V? +
Choose based on your battery bank voltage: pick an MPPT compatible with 12V, 24V or 48V.
4. How do I size current rating (A)? +
Size in amps based on your panels and usage (e.g., 10A, 30A, 60A). Higher charge current requires a controller with a suitable rating.
5. Which models are best for monitoring (Bluetooth)? +
If you need connectivity, look for models with built-in Bluetooth (e.g., Victron SmartSolar MPPT).