Product overview:

The UK solar power specialist Photonic Universe Ltd is proud to offer this brand new Morningstar 25A SunSaver Duo dual battery solar charge controller / regulator for independent charging of 2 x 12V batteries or battery banks by solar panels with combined power of 400W.
   Our promise:
  • No-quibble 30 days return period
  • UK repair or replacement warranty
  • Free lifetime technical product support
  • Deep industry expertise and knowledge
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As an official distribution partner of Morningstar products across the globe, we are proud to offer solar charge controllers from this world-leading supplier. Innovative design from years of dedicated research and superior build quality enable these top-of-the-range solar charge controllers to extend battery capacity and life, maximise energy production, and consistently achieve high performance standards.

This high quality Morningstar SunSaver Duo 25A 12V dual battery solar charge controller is well-recognised as the most powerful dual battery controller on the market and is suitable for various applications.

It is perfect for caravans, motorhomes, boats or other systems with 2 batteries (e.g. engine and leisure battery). You can set initial charging priority e.g. 90% leisure battery and 10% engine battery. When one of the batteries is fully charged the controller will automatically divert all power to the other battery.

Other key features include:

  • Extremely high reliability, with a long 5 year warranty and estimated 15 year life
  • Epoxy encapsulation protects the controller against dust and high humidity
  • Negative common ground - ideal for most motorhomes, boats and stationary applications
  • Lower system cost as the two battery charging eliminates the need for two separate solar power systems
  • Four stage series PWM pulse charging increases your battery life
  • Specific settings, such as slow switching charging mode for sensitive loads to avoid interference
  • Easy to install and use, with factory pre-sets, fully automatic operation and fault recovery

Can the unit work with only 1 battery? Yes, absolutely! The controller will determine automatically if there's only 1 battery connected and will pass 100% of charging current to this battery. You can add a second battery later.

This powerful 25A controller can work with solar panels up to 400W. It has many protection functions, such as stopping reverse current at night (from the battery to the solar panel), over charge, short circuit, reverse polarity etc. Other features include an LED status indicator, battery type selection (sealed, or flooded - two batteries can have different types) and RJ-11 socket for a remote LCD meter (see the listing for Morningstar SunSaver Duo 25A dual controller with a remote meter). A built-in temperature sensor allows charging adjustment depending on the ambient temperature.

Controller specifications:

  • Rated charging and load current: 25A
  • Solar input voltage up to 30V and power up to 400W
  • Minimum battery voltage: 1V
  • 3 pairs of terminals (battery 1, solar, battery 2)
  • LED indicator to show operational state and system errors
  • Temperature sensor for automatic compensation (-30mV/C/24V)
  • RJ-11 connection point for a remote meter (not included)
  • Self-consumption: 5.5mA at night, 10mA when charging
  • Grounding: negative common ground
  • Working temperature: -40°C to +45°C
  • Terminals for wire up to 16mm2
  • Size: 168.8 x 55.1 x 34.5 mm
  • Weight: 260 g
  • Mounting holes for ease of installation

You can download the product datasheet for a quick overview.

The product comes with an instruction manual which explains connections and operations.

If you have any questions about this product or you need our free advice please contact us via eBay messaging (tick the box "This is not about an item" if you don't know this item number).

Payment:

  • We accept Pay Pal, cheques, credit and debit cards, and bank transfer payments. If you choose a cheque payment, please note it might take up to 2-3 weeks to get processed and cleared. Other payment methods are normally much faster, and they should be used for urgent orders. Buy it now listings will require an immediate payment via eBay.

Delivery:

  • Please note that import duties, taxes, and charges are not included in the item price or shipping cost. If the courier requires payment of these local charges to complete the delivery, they will be your responsibility as a buyer.
  • Upon receipt of the item, please examine it carefully. In the unlikely event of any damage in transit, please report it to us immediately by email or phone, but in any case no later than 7 days after receipt of the item. To enable us to deal with the courier efficiently, we may ask for some additional details, e.g. photographs of the damage and packaging.

Returns:

  • If you change your mind within the first 30 days of receipt of the item, we will be happy to accept it back and refund your payment. You will need to notify us via email / phone within 30 days of receipt that you intend to return the item, request the return address and send the item back within a further 14 days at your cost. To be eligible for a full refund, the item must be new, unused, undamaged and correctly packaged. Please ensure that we receive the item in its brand new, original condition, i.e. take reasonable care to wrap and protect it on the way back to us.

Warranty:

  • This product is covered by a 5 year manufacturer warranty.

About us

Photonic Universe Ltd is a company based in London, United Kingdom. We design and supply solar and wind renewable energy products and complete off-grid power systems for various applications, to both trade and retail customers. Tens of thousands of clients all over the world rely on our products to generate clean energy for their households, vehicles, boats and remote places with no access to mains electricity.

We strongly believe that solar and wind energy can provide significant benefits and we are doing our best to allow you to buy these quality solar products at fair prices. We've had a lot of positive feedback from our customers who have been impressed by the high quality of our products and excellent service.

We are VAT registered in the UK and can provide VAT receipts upon request. Photonic Universe is a registered trademark in the UK.