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Morningstar PS-MPPT-25M, 25A MPPT Charge Controller

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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.

The ProStar MPPT™ is a mid-range MPPT solar charge controller with TrakStar Technology™ that provides maximum power point tracking (MPPT) battery charging for off-grid photovoltaic (PV) systems up to 1100 watts. Available with and without advanced built-in meter. This device is ideal for industrial and residential applications. A Wire Box accessory to reduce hazards associated with exposed wires and connections can be purchased separately.


  • Load and automatic PV-based lighting control
  • Charges all battery types including Lithium Ion
  • Continuous charging and no damage from PV array oversizing
  • Up to 256 days of data logging
  • Built-in self diagnostics
  • Highly durable polycarbonate case
  • Low noise design
  • MODBUS communications
  • Meter allows charging and temperature control adjustments without a computer


Max. Battery Current: 25 Amps

Load Current Rating: 25 Amps

Nominal Max. Operating Power: 12 volt battery: 350W @45C

                                                               24 volt battery: 700W @60C

Max. PV Open Circuit Voltage (Voc): 120 Volts (without damage to unit)

Nominal Battery Voltage: 12V or 24V

Peak Efficiency: 98%

Battery Voltage Range: 10-35V

Voltage Accuracy: <= 0.1% +/- 50mV

Self-Consumption: normal: 0.6W; maximum: 1W

LED Indications: (1) status, (3) Battery S.0.C.

Transient Surge Protection: solar, battery, load

Dimensions: 20 x 17 x 7 cm / 7.9 x 7.6 x 2.8 in

Weight: 1.4 kg / 3.1 lbs

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