Genergy SUN300W – Foldable Solar Panel 300 W with 35 V Output and Universal Adapter
Service
Service workshop in Germany
Direct support
+49 5423 477400
Technical specifications
| Delivery time | 7–10 working days |
|---|
Genergy SUN300W – Foldable Solar Panel 300 W with 35 V Output and Universal Adapter
The Genergy SUN300W is the most powerful foldable solar panel in the Genergy range and is aimed at users who need maximum solar charging power from a single panel. With high-efficiency grade A monocrystalline PERC cells, an efficiency of ≥ 22.8 %, a higher output voltage of 35 V and a universal adapter (MC4 to 5521 / 7909 / XT60 / Anderson), it is the perfect choice for powerful portable power stations with a wide solar input range. Several SUN300W panels can be connected in series to quickly fill even large battery capacities.
Your Advantages at a Glance
- 300 W peak power – the most powerful single panel in the Genergy range
- Higher output voltage of 35 V – ideal for power stations with MPPT trackers and a wide input voltage range
- High-efficiency monocrystalline PERC cells (grade A) – up to 22.8 % efficiency
- Up to 23 % conversion rate – compared with just 15 % for cheaper competitor products
- Universal adapter included – MC4 to 5521, 7909, XT60 and Anderson for maximum compatibility
- Folds into 3 segments – folds down to a compact 66.5 × 96.5 × 4 cm
- Robust 5-layer construction – ETFE / EVA / solar cell / EVA / TPT for maximum weather and abrasion resistance
- Integrated folding kickstand – quick set-up for optimal alignment with the sun
- Series connection possible – up to 4 SUN300W panels for up to 1,200 W on powerful power stations
- 2.1 m cable included – flexible positioning, even if the power station is in the shade
Higher Voltage = More Efficient Solar Charging
Unlike the smaller SUN100W and SUN200W models (21 V each), the SUN300W delivers an output voltage of 35 V. Combined with modern MPPT solar charge controllers, this has decisive advantages:
- Higher efficiency in low light – higher voltage means a better energy yield even in dull weather and in the morning/evening hours
- Lower cable losses – at the same power, less current flows and the voltage drop in the cable is lower
- Better scalability in series – several panels in series quickly reach the optimal MPPT range of 100 V+
Maximum Efficiency Thanks to Premium Cell Technology
The secret behind the outstanding performance of the SUN300W lies in its high-quality 5-layer construction: the outer ETFE coating reliably protects the solar cells against weather, UV radiation and mechanical stress – while ensuring high light transmission. The grade A monocrystalline PERC cells convert incoming sunlight into usable energy with an efficiency of over 22.8 %. In a direct comparison, the SUN300W therefore delivers significantly more energy per square metre than cheap standard panels.
Universal Adapter: Compatible with Almost Any Power Station
A 4-in-1 adapter cable with the most common connectors worldwide is included: MC4, 5521, 7909, XT60 and Anderson. This makes the SUN300W not only perfect for all Genergy power stations, but also for 99 % of all other brands on the market. So you can keep using the panel even if you switch to a different power station system later on.
Recommended Genergy Power Stations
The SUN300W is optimally matched to the following Genergy models:
- Genergy GZE2224-C (800 W solar input) – 1–2 SUN300W panels in series
- Genergy GZE1020-E (800 W solar input) – 1–2 SUN300W panels in series
- Genergy GZE2025-E / GZE3036-E / GZE5050-E (2,100 W solar input) – up to 4 SUN300W panels in series
- Genergy GZE4672-E (2,100 W solar input, 18–130 V) – up to 4 SUN300W panels in series
Important: Due to its higher output voltage (35 V), the SUN300W is not suitable for the smaller GZE1012-C and GZE1515-C models, which have a solar input range of only 16–26 V. For these, choose the SUN100W or SUN200W. Always check the exact solar input values of your power station.
Applications
- Demanding camping and long-term motorhome use
- Outdoor activities, expeditions, hunting
- Garden, patio and balcony
- Fully-fledged backup power reserve with solar charging
- Vanlife and tiny houses
- On-location photo and film production
- Weekend plots and mountain huts without a power connection
- Off-grid workshops and professional mobile construction sites
- Event supply and food trucks
Technical Data
| Module | Electrical values | Mechanical data |
|---|---|---|
|
Rated power 300 W (±5 %) Cell technology Monocrystalline PERC (grade A) Efficiency ≥ 22.8 % Construction 5-layer ETFE construction (ETFE / EVA / cell / EVA / TPT) STC conditions 1,000 W/m² · AM 1.5 · 25 °C NOCT range −20 °C to +60 °C |
Output voltage (Vmp) 35 V Output current (Imp) 8.57 A Open-circuit voltage (Voc) 41 V Short-circuit current (Isc) 9.09 A Output MC4 connector Universal adapter MC4 to 5521 / 7909 / XT60 / Anderson (incl.) Series connection Up to 4 panels possible |
Folded dimensions 665 × 965 × 40 mm Unfolded dimensions 1,880 × 965 × 25 mm Weight 11 kg Total cable length 210 cm (150 cm MC4 + 60 cm adapter) Kickstand Integrated, folding Carry handles Yes, ergonomic |
Scope of delivery
Genergy SUN300W foldable solar panel
Universal adapter cable (MC4 to 5521 / 7909 / XT60 / Anderson)
Operating instructions
Optional accessories
MC4 extension cable 3 m red (ref. 31637)
MC4 extension cable 3 m black (ref. 31638)
Certifications
BS EN 55032 · EN 61000-3-2 · EN 61000-3-3 · BS EN 55035 · IEC 62321 (RoHS)
Family tradition meets engineering excellence
Founded in 2007, we are a family-owned business that has been setting standards in portable power for almost two decades. What started as a small vision has grown into one of the most trusted names for professionals and discerning private customers alike.
With us, you're not just buying a product – you're getting a promise. In our in-house certified service workshop in Germany, every unit is thoroughly tested before it ships. And our team of experts is there for you long after your purchase – personal, knowledgeable and on hand whenever you need us.
- 2007
- Founded
- In-house
- Service & workshop



Knetterhauser Straße 26