MPP430 charge controller 25 amps MPPT. Dual Battery

Original price was: £289.00.Current price is: £229.00.

Increased solar panel usage using MPPT technology

Made in Germany

For solar panel arrays of up to 430 watts

10% – 30% extra charging current compared to some PWM controllers

Suitable for lead-acid, gel, AGM and LiFePO4 batteries

Can also charge the engine battery at 1 amp


Plug-in remote display LCD-Solar-Computer-Display

Bluetooth unit for MPPT dual battery controllers

Out of stock


MPPT Solar charge controllers for motorhomes and boats. Made in Germany

MPPT solar charge controllers for motorhomes, sailing yachts and narrowboats. For solar panel arrays up to 25 amps (430 watts).

  • Optimal charging of lead/acid, AGM, Gel or Lithium batteries
  • Can also charge your engine battery at 1 amp from the same solar panel
  • 10%-30 % extra use of the solar panel through the MPPT (mean power point tracking) system
  • Proven high reliability
  • Intelligent 3-stage charging:
    • ‘Boost’ mode to take full advantage of the available sunlight
    • ‘Absorption’ mode to maximise charge levels, and prolong battery life
    • ‘Float’ mode to maintain the batteries once they are fully charged
  • Specially designed for motorhomes and boats
  • Fully automatic.  Very simple setup
  • LED indicators show charging, battery level and MPPT function
  • Robust, compact design built for very long life and zero maintenance
  • Can accept solar panel arrays of up to 430 watts, 25 amps

SunWorks solar panels that suit the MPP430 MPPT solar charge controllers:

We can supply rigid aluminium-framed panels, semi-flexible panels and marine grade solar panels. For example:

Installation information for use with the MPP430 MPPT solar charge controller:

Each controller comes with complete illustrated instructions. Here are the basics:

  • The controller is mounted inside the boat or motorhome close to either the engine or leisure/domestic battery.
  • Two wires pass through the roof or deck to connect the controller to the solar panels.
  • Two wires connect the controller to the battery.

Typical connections for a motorhome:

Typical connections for a boat:

Below we list some useful accessories that will ease the installation of your solar panel system.

Wiring accessories:

To help install this solar charge controller on your motorhome or boat, we recommend the following items:

Other useful accessories:

To make a secure and watertight connection through the roof of your motorhome or the deck of your boat:

If you need any further help or advice concerning this product, please do not hesitate to contact us: [email protected]

Additional information

Shipping Weight 0.6 kg
Shipping Dimensions 150 × 60 × 80 cm


Maximum solar panel current

25 Amps

Maximum solar panel power

430 Watts

Battery operating voltage (nominal)

12 Volts (nominal)


131mm x 40mm x 77mm

Controller weight

285 grams

Charge modes

Boost (bulk), Absorption (PWM), Float (PWM)

Recommended wire type

6 mm sq. solar cable

Connection type

Screw terminals

Solar panel maximum Voc

50 Volts

Operating temperature

-20 degC to +45 degC


  1. SteveC (verified owner)

    Absolutely outstanding bit of kit from an excellent supplier. A replacement for our previous SunWorks controller and worth every penny along with allowing us to add a third panel. This controller “scavenges” more from the panels, especially in low light. I am currently sat in the pouring rain and it’s producing 2amps from 260w panels. We opted for the external display and located the controller out of sight. It’s also connected to our AES fridge and on excess power periods it saves a little gas by operating on 12v direct from the solar.
    We are very pleased with this unit. Not cheap but you get what you pay for.

    • Tony Weldon

      Many thanks Steve!

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