Solar power is generated when photovoltaic
modules convert direct sunlight into electricity.
Direct current (DC) flows from the photovoltaic modules through a regulator
to a battery
or battery bank where the power is stored.
12v DC appliances can be powered directly from the batteries.
Watts / Volts = Amps.
Technical Installation Documentation Download: Solar Panel / Charge
Controller / Battery / Wiring / Inverter / Wiring Specifications.
General Information on Solar Panel and Battery
To power alternating current (AC) appliances, inverters are required.
The inverter converts DC power into AC power.
Battery Charge Regulators / Controllers.
A 6Amp Battery Charge Controller will suffice for one Solarflex 32Watt
Flexible Solar Panels.
Should you require more than 1 x 32 Watt Panel a 10amp Battery Charge
Controller is recommended.
The Volts supplied at maximum power for a 12V solar module are between 14-16
Volts per panel.
If you divide 32Watts with 16Volts from each panel they will push 2.0Amps
each through the
regulator, therefore a 6Amp regulator will be the minimum regulator size
6 Amp Steca Solsum Charge Controller.
Solar Panel Connectors.
Please note that connectors on the panels supplied may differ with the
connectors on view.
Most good quality connectors available in South Africa will be acceptable to
panels with most appliances available in South Africa; 5-6mm squared wiring
will suffice for wiring.
In marine operations water resistant connectors are recommended for best
If in doubt please contact your nearest reseller.
The 3M UV resistant extension cable for extending the cable length from the
Solar Panel to the Charge Controller.
The bare ended wires are connected directly to the Charge Controller.
The Charge Controller.
The extension cable is connected to the Charge Controller positive and
A battery cable is connected from the Charge Controller directly to the
The Charge Controller will regulate the voltage to the battery in order to
prevent overcharging of the battery.
The Y connector can connect 2 or more Solar Panels to a cable connected to
Charge Controller, this will increase the Amps delivered to the Battery and
according to the amount of Power required in Amps/Hr.
Deep Cycle Battery with the Anderson Universal Connector.
We use the 16 amp rated BMM connectors, effective and affordable.
A 12v Fan was connected directly the Solar Panel.
The Solar Panel will normally operate at between 13.5 – 15 volts,
the Charge Controller will cut out at approximately 22v to prevent damage to
NB. In the event that the load device has a 220 AC input socket without a
12v option an
INVERTER can be installed on the circuit which will convert the 12v DC
current to 220v AC current
for any appliance, such as a microwave, computer, lights etc, it is
necessary to ensure that
the output wattage of the inverter is capable of supplying sufficient watts
for all devices connected.
Similarly should there only be a 220v electrical supply a TRANSFORMER can
step down the 220v
DC current to a 12v DC load device.
The large majority of fridges have both the 12v and 220v options however
many other devices
can be be operated.
Close up of the standard operation with the Charge Controller, Battery and
Solar Panel with Extension Cable.
Battery Cable Connectors from Charge Controller to load device.
(The types of connectors depend on the cable connectors deployed.)
Two panels were connected and as demonstrated the panels are
very robust as well as being waterproof and flexible.
The Solarflex SA 32Watt Panels are specifically designed for yachting, they
are also suited for any outdoors environment.
NB: Flexibility does not include the panels being rolled up or bent in the
Recommended to be stored and transported whilst flat.
The left socket is the 12v male input kettle plug type and
the right socket is a standard 220V male kettle plug socket.
The picture below shows 2 x 32Watt panels, secured with cable ties through
the securing eyelets, with the y-splitter cable,
connected to a 3m Extension Cable which in turn is connected to the Battery
The Battery cable (without connecters) is also connected to the charge
Specific connectors - self installed - according to your battery type,
connect to the battery from the battery cable.
Most users will generally have their own connectors from battery to load
devices such as a fridge or whichever
devices are being powered from the batteries themselves.
In this configuration the panel’s operating voltage will stay the same;
however the output amperage is increased for greater power generation.
The picture below shows 2 x 32Watt panels, secured by cable ties to each
other, folded onto each other.
The panels can be safely transported in this manner thereby protecting the
solar panel during transportation.
It is not recommended to roll up the panels, best practice is to transport
Kindly download the Solarflex SA User Manual for further information.