Description
300 W folding panel, 7.8 kg packed — the portable option for real loads. When a folding panel has to do more than trickle-charge. Same argument as the 200 W: aimable, movable, and nothing attached to the vehicle — just more of it.
Key points
- Enough to matter — 300 W aimed at the sun does serious work compared with a flat roof panel.
- Still nothing drilled or bonded to the vehicle.
- 7.8 kg — heavier to carry, so think about where it lives when packed.
- Pairs with a roof array for people who camp off-grid in the shoulder seasons.
Specifications
| Cell type | Monocrystalline, 9BB/12BB |
| Peak power (Pmax) | 300 W |
| Voltage at Pmax (Vmp) | 18.68 V |
| Current at Pmax (Imp) | 16.05 A |
| Open-circuit voltage (Voc) | 22.3 V |
| Short-circuit current (Isc) | 16.91 A |
| Cell efficiency | 20–22 % |
| Power tolerance | ±5% |
| Surface material | ETFE (imported from Japan) |
| Cloth material | 900D Oxford cloth |
| Panel configuration | 6 × 50 W / 18 V panels, wired in parallel |
| Dimensions | Folded 615 × 535 · Unfolded 3420 × 615 mm |
| Weight | 7.8 kg |
| Support bracket | Integrated kickstand |
| Operating temperature | -20 to +50 °C |
| Junction box | Built-in IP65 PV junction box, 900 mm cable + MC4 |
| Construction | ETFE + EVA + cell + EVA + PET + EVA |
| Supplied accessories | 3 m MC4 extension cable · 1.5 m DC-to-DC5521 cable |
| Packaging | Bubble bag inside, carton outside |
| Enclosure rating | IP65 |
Warranty: 1 year full warranty. This is the manufacturing factory’s published warranty, passed through to you unchanged — we do not extend it or restate it in more favourable terms.
Certification: the factory that makes this product holds ISO 9001, CE, RoHS and SGS. These certificates belong to the factory, not to Topenergy. We will name the factory and provide the certificate with its number on request — see certifications.
Best for
Full-timers supplementing a roof array, and off-grid setups on vehicles that cannot be modified.
Price on request. Send us the quantity and destination country and we will quote — request a quotation.




