Solar Panel Charge Controller. 11 Amps. 170 Watts. SB1Z


Solar Charge Controller SB1Z. High performance at a very low cost

For Solar Panel of up to 11 amps (170 watts)

Compact design with three stage charging: Bulk, Absorption and Float modes

Two bright LED’s indicating solar current and battery state

SunWorks PWM technology: Prolongs battery life

Can be used with the SunWorks Remote Display Unit


Out of stock


Solar charge controller  SB1Z

The all new SB1Z high performance, economical solar charge controller designed to protect and maximise the charge in your battery.

  • Designed specifically for motorhomes, boats and caravans.
  • Fit and forget. Silently optimises the charge from your solar panel
  • Suitable for solar panels of up to 11 amps, 170 watts
  • Optional Remote Display Unit. Bright clear LCD keeps you up to date with the performance of your solar system.
  • Very low self-consumption. Suitable for use with most small to medium size solar panels
  • Two bright LED’s indicate battery charge level and solar charging mode
  • Intelligent 3-stage PWM 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 battery once it is fully charged
  • High efficiency SunWorks Precision PWM technology
  • Attractive, compact design
  • No setting up routine
  • Easy to install
  • Compensates for variations in battery temperature
  • Selector switch for gel/liquid battery types
  • Proven high reliability
  • All British design

 SunWorks Solar Panels that suit the SB1Z solar panel charge controller:

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

Installing a solar charge controller is straightforward for any competent DIY person. 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

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

Wiring accessories:

To help install the SB1Z solar panel 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 0.25 kg


Maximum solar panel current

11 Amps

Maximum solar panel power

170 Watts

Battery operating voltage (nominal)

12 Volts





Controller weight

95 grams

Charge modes

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

Recommended wire type

2.5 mm sq. automotive cable

Connection type

2-5-mm-sq-automotive-cable, Screw terminals

Solar panel maximum Voc

35 volts

Operating temperature

-15 degC to +50 degC

Storage temperature

-25degC to +60degC

Environmental protection



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