Motorhome solar system SPR-F 120W 12V EBL optional

This solar set for self-sufficient power supply in a motorhome really leaves nothing to be desired. Innovative MPP solar charge controller technology combined with the flexible 120W SP-Ultra 12V high-end solar module from Offgridtec (efficiency >24%) ensure high yields. The stand-alone solar system is specially designed for motorhomes. Except for the batteries, it contains everything you need to install and operate the 12V solar system. In addition, the charge controller offers the option of connecting the solar system to the Schaudt electrical block (EBL) of the motorhome (EBL connection cable required). All components included in the set meet the highest quality standards.Set meet the highest quality standards.

Special features

• Flexible high-end solar module equipped with American Sunpower cells and rear-contacted. The module efficiency is over 24%, which is well above average
• The SPR series Semi-Flex modules supplied are significantly smaller and lighter than comparable conventional solar modules with the same output. They can be bent up to a curvature of 30%
• Solar charge controller – innovative technology made in Germany enables the charging of living space and starter batteries.
• MPP tracker – maximum power point tracking ensures higher yields as the entire module voltage is used
• EBL-compatible – can be operated both on the Schaudt electrical block and directly on up to 2 different battery circuits

If you have any questions or would like to make changes, our customer service team will be happy to help (email: info@offgridtec.com, tel: +49 (0) 8721 77861-87).

Daily yield

Average daily yield in summer from May to October: 480Wh per day (measured in northern Germany; the further south you are, the higher the yield you can expect)
With the Solar-Mobil series, we rely on solid brand power, despite the favorable conditions for our complete sets. Compare the individual prices of our supplied components!

The supplied components:

1 x Offgridtec® 120W high-performance flexible solar module (back contact)
1 x Votronic 1712 MPP 170 CI solar charge controller
1 x Votronic LCD Solarcomputer S remote display/remote control
1 x Offgridtec 1-way cable gland, black
1 x 8m 2x6mm Offgridtec 005095 motorhome solar connection cable - solar modules to charge controller, special motorhome design
1 x Offgridtec 1.5m 6mm² battery cable M8 with flat fuse holder, 30A fuse and pole terminals
1 x mounting adhesive set including instructions and necessary components for pre-treatment
1 x EBL cable set

expert assistance included if required!

The set contains all the components you need to charge your batteries on the go.

Offgridtec® 120W high-performance solar module, flexible (back contact)
Semi-flexible monocrystalline 120W / 12V high-end solar panel with rear-contacted high-power solar cells from the American manufacturer Sunpower – currently the best available with an efficiency of over 24%. This product combines the world's best solar cells with the new back-contact process. The result is a high-end product at a reasonable price. In addition, during the production of this series, we took special care to ensure that the rest of the module was also worthy of these valuable cells.

This panel is significantly lighter and smaller in size than conventional solar cells with the same output. The light yield in poor conditions is also higher with the SP series than with our normal mono series.
The modules are flexible up to a curvature of 30%. We recommend bonding the modules using the adhesive kit included, which contains individual thick adhesive strips. The module also has mounting lugs. Please refer to our user instructions for more information.

Technical data 120W high-performance flexible solar module (back contact)
Power: 120Wp
Voltage: 19.8V
Current: 6.05A
Open-circuit voltage: 23.4V
Short-circuit current: 6.41A
Max. system voltage: 200V DC
Cell efficiency: >24%
Dimensions: 1070 x 540 x 2 mm
Weight: 2.08 kg

The Votronic MPP 170 CI solar charge controller
With a maximum charging power of 170 watts and proven Maximum Power Point Tracking (MPP) technology, the charge controller maximizes the yield of your solar system by automatically determining the optimal operating point for the solar cells. This ensures efficient conversion of solar energy into electrical power, thereby optimizing charging efficiency.

Technical data

• Battery nominal voltage lead: 12V
• Battery nominal voltage LiFePO4: 12.0 - 13.3V
• Solar module voltage (Voc) max: 60V
• Solar module current max: 0-10A
• Solar module power (Pmax): 40 - 170Wp
• Recommended minimum battery capacity lead: > 40Ah
• Recommended minimum battery capacity LiFePO: > 30Ah
• Maximum charging current for auxiliary battery: 0 - 13.0A
• Max. charging current for starter battery: 0-1.0A

LCD solar computer S
the measured values are clearly displayed on the screen and can be easily operated at the touch of a button for better control and use of the solar system. The current solar power is always shown as a bar display, allowing you to check it at a glance. The display is backlit (switchable) and can be read very easily even from a distance and in all lighting conditions.

Cabling set
All necessary cables are pre-crimped with specialized tools. This means you do not need to purchase special pliers for the MC-4 connectors. The cable is 8 m long and has two 6 mm² wires.

Cable feed-through
Cable entries from the roof into the interior are always quite tricky, as it must be ensured that everything is absolutely watertight and remains so even after years of use.
Even the smallest amount of water ingress can often cause irreparable damage to the interior insulation and furnishings. This is particularly true as moisture is often only noticed at a fairly late stage. This is why the roof feed-throughs were developed:
The housings are made of the same UV- and weather-resistant material as the mounting brackets offered in the online shop. They are extremely stable and absolutely slip-proof. The wide adhesive edge ensures optimal sealing.
The feed-throughs can be glued on using the adhesive set, which you also need to glue on the solar mounting brackets. The housings can also be painted in any color and thus adapted to the surface on which they are to be mounted.

Adhesive bonding
When used correctly, bonding is superior to screw connections in the harsh conditions of motorhome or boat use. On painted or GRP surfaces, a strength of over 4 N/mm2 can be achieved, which, calculated on the bonding surface, is a value that would never be achievable with a screw connection in the thin aluminum or GRP carrier layer. This adhesive set enables even a layman to create an absolutely secure connection between spoilers and the respective substrate.

The adhesive set contains all the components necessary for even DIYers to create a professional connection. Stainless steel screws for attaching the solar modules are included, as are detailed adhesive instructions. All you need in addition is a standard hand lever press for cartridges and a lint-free cloth.

The adhesive kit contains all the components needed to enable even DIY enthusiasts to create a professional connection. Stainless steel screws for attaching the solar modules are included, as are detailed adhesive instructions. All you need is a standard hand lever press for cartridges and a lint-free cloth.


Individual modification requests are welcome on request
If you would like a different charge controller from our range, or if you would like the cables to be a different length, please feel free to contact us at any time. The color of the spoilers and the roof feed-through can also be changed from black to white. Simply send a short request for a quote to our customer service team, including the item number and your change request. Please contact customer service to find out about any costs that may be incurred