Charge Controllers

Morningstar ProStar MPPT

£ 330.75GBP · price may vary

Model: PS-MPPT-25
Specifications: 7

System Battery Voltage12V, 24V
Max VOC120V
MPPT Trackers1
ConnectionScrew terminals
Weight (kg)1.4
View all 7 specifications ↓

Overview

The Prostar MPPT™ solar charge controller uses TrakStar Technology™ for advanced maximum power point tracking (MPPT) battery charging. Suitable for Lithium, Nickel Cadmium, and Lead Acid battery types. For off-grid photovoltaic (PV) systems of up to 1100 watts with a maximum open circuit voltage of 120 VDC and battery systems of 12, or 24 VDC. 25 or 40 amp versions allows two modules in series on a 12V battery system and two or three modules in series on a 24V battery system. Status LEDs, optional meter and communications port Automatic PV Based Lighting Control – multi-event load control enables powerful options for PV lighting systems. Settings can easily be adjusted in the field. Optional Wiring Box allows use of M20 conduit or glands 5 year warranty

Specifications

System Battery Voltage	12V, 24V
Max VOC	120V
MPPT Trackers	1
Connection	Screw terminals
Weight (kg)	1.4
Warranty	5
IP Rating	IP20

What these specifications mean

Morningstar ProStar MPPT is listed with 7 published specifications from Morningstar, including system battery voltage of 12V, 24V, max VOC of 120V, MPPT trackers of 1 and connection of Screw terminals. Those figures are what decide whether this unit fits your system, so read them against the equipment it will connect to before comparing price.

For a charge controller, the figures that matter most are conversion efficiency, typically 96–99% for a good MPPT unit, whether it offers a load output, temperature compensation and remote monitoring, type: MPPT or PWM and rated charge current in amps, which must exceed the array's short-circuit current with margin. In any system with a battery and a separate array, the controller is what protects the most expensive component and determines how much of the array's output actually reaches storage.

Choosing a charge controller: the checks that matter

The checks below apply to any charge controller. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.

Prefer a unit with temperature compensation or a battery temperature sensor if the bank lives somewhere that gets hot or cold.
Choose MPPT over PWM for anything beyond a very small array. An MPPT controller harvests roughly 20–30% more energy because it converts excess panel voltage into charge current instead of throwing it away.
Size the current rating from array watts divided by battery voltage, then add at least 25% margin for cold, bright conditions where panels exceed their rated output.
Check the maximum PV input voltage against the array's Voc at your coldest expected temperature, not at 25 °C — Voc rises as temperature falls, and exceeding the limit destroys the controller instantly.

What people get wrong

Sizing on rated array watts alone and ignoring the voltage ceiling, which is the most common way controllers are killed.
Using a PWM controller with a high-voltage grid-tie panel — the voltage mismatch wastes a large share of the panel's output.
Running the load output beyond its rating instead of wiring heavy loads directly to the battery through a fuse.

Price and availability in United Kingdom

Morningstar ProStar MPPT is listed at £ 331 (GBP) for United Kingdom. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.

SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in United Kingdom: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Morningstar locally before ordering.

Morningstar ProStar MPPT — frequently asked questions

How much does Morningstar ProStar MPPT cost?

Morningstar ProStar MPPT is listed at £ 331 (GBP) for United Kingdom. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.

What are the specifications of Morningstar ProStar MPPT?

We hold 7 published specifications for this charge controller, including system battery voltage 12V, 24V, max VOC 120V, MPPT trackers 1, connection Screw terminals and weight (kg) 1.4. The full table is on this page, listed under model PS-MPPT-25.

Who makes Morningstar ProStar MPPT?

Morningstar ProStar MPPT is a Morningstar product, listed under charge controllers with model reference PS-MPPT-25. The Morningstar brand page lists the rest of its range so you can compare across the catalogue.

Is Morningstar ProStar MPPT right for my system?

That depends on what it has to connect to. For a charge controller, check conversion efficiency, typically 96–99% for a good MPPT unit, whether it offers a load output, temperature compensation and remote monitoring and type: MPPT or PWM against the rest of your equipment before price enters the decision. Check the maximum PV input voltage against the array's Voc at your coldest expected temperature, not at 25 °C — Voc rises as temperature falls, and exceeding the limit destroys the controller instantly.

Where can I buy Morningstar ProStar MPPT in United Kingdom?

SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in United Kingdom — buying in-channel is what keeps the manufacturer's warranty valid.

Reviews

No reviews yet

Be the first to review this product.