Solar Panel Charge Controller. 15 Amps. 240 Watts. Grey. SB2C


The SB2C solar panel charge controller will control your solar panel,  protect your batteries and look smart in your living space

With highly efficient SunWorks PWM technology for optimal charging this controller works with solar panels of up to 240 watts

The large clear LCD display shows the solar current and the battery voltage level

Cables can enter from the back so there is no unsightly wiring

The SB2C is available in light grey or black.


Out of stock


Solar panel charge controller with LCD Display specifically designed for motorhomes yachts and caravans.

The SB2C solar panel charge controller is a high specification solar charge controller with LCD. It is one of our best-selling single battery units.  Ensures optimal charging of your batteries.

  • Can accept solar panels up to 240 watts, 15 amps
  • Fully automatic.  No setting up routine
  • Intelligent 3-stage charging:
    • ‘Boost’ mode to take full advantage of the available sunlight
    • ‘Absorption’ mode to maximize charge level and prolong battery life
    • ‘Float’ mode to maintain the battery once it is fully charged
  • Suitable for all 12 Volt leisure and engine batteries. Liquid or gel types
  • The SB2C Solar charge controller has a large clear display providing continuous reading of solar current and battery voltage
  • Available in black or light grey to enhance the interior of any motorhome, boat or yacht
  • No visible fixing screws
  • Compact design
  • High reliability
  • Cables can be concealed by entering from the back of the controller, enhancing the appearance

SunWorks Solar Panels that match the SB2C controller:

Installing a solar charge controller is straightforward. Each controller comes with complete illustrated instructions.

Here are the basics. See the diagrams below:

  • The controller is mounted inside the boat or vehicle, close to the battery.
  • A 2-core cable passes through the roof or deck to connect the controller to the solar panel.
  • Another 2-core cable connects the controller to the battery via a suitable fuse.

Typical connections for a motorhome or caravan:

Wiring for single battery_motorhome

Typical connections for a yacht or narrowboat:

Wiring for single battery_boat

Wiring Accessories:

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

Other 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 0.3 kg


Maximum solar panel current

15 Amps

Maximum solar panel power

240 Watts

Battery operating voltage (nominal)

12 Volts




Light grey

Controller weight

210 grams

Charge modes

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

Recommended wire type

2.5 mm sq. automotive cable

Solar panel maximum Voc

35 volts

Operating temperature

-15 degC to +50 degC

Storage temperature

-25 deg C to +60 deg C

Display resolution

0.1 (10th’s) for volts and amps

Environmental protection



  1. S. Bartlett (verified owner)

    I am very pleased with the solar controller and the service from Sunworks was excellent. Sunworks answered all my questions by email immediately.

    The controller not only works great but also looks good as cables enter from the rear. Why would you want the wires on display as other manufacturers contollers do ?

    Many thanks

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