Xiamen D.T. Multi Tech Co., Ltd. is one of the most reliable manufacturers and suppliers of 300w off-grid power solution in China. With abundant experience, we warmly welcome you to wholesale cheap 300w off-grid power solution from our factory. If you have any enquiry about cooperation, please feel free to email us.
Ultra-Safe LiFePO4 Portable Power Station
In the rapidly evolving landscape of mobile energy, reliability and safety are the benchmarks of a truly professional-grade device. Our 300W Off-grid Power Solution is engineered for users who demand a compact yet high-performance energy source for outdoor work, emergency backup, and off-grid recreation.
Built with advanced LiFePO4 (Lithium Iron Phosphate) battery chemistry, this portable power station offers an exceptional balance of longevity and portability, ensuring your critical devices stay powered wherever your mission takes you.

Core Performance & Reliability
As a specialized provider of high-efficiency energy systems, we prioritize the internal architecture of our power solutions. This 256Wh unit is equipped with a Pure Sine Wave inverter, delivering stable AC output that is identical to grid power. This ensures total protection for sensitive electronics such as laptops, CPAP machines, and medical equipment, preventing the harmonic distortion common in lower-end modified wave units.
- Extended Service Life: Unlike standard lithium-ion alternatives, our LiFePO4 cells support 2000+ life cycles to 70% of their original capacity, providing over five years of daily reliable service.
- Versatile Charging Ecosystem: Features a dedicated PD 20W Type-C port and QC 18W USB-A for rapid smartphone and tablet charging, alongside three 12V/8A DC outputs for specialized field equipment.
Technical Specifications
| OUTPUT | |
| AC Output: | 220V/110V ± 10% |
| Inverter Type: | Pure Sine Wave |
| Surge Power: | 300W |
| USB Port: | USB 5V 2.4A; QC18W; PD20W |
| DC 12V Output: | 12V / 8A*3 |
| INPUT | |
| AC input: | 220V/110V |
| PV input: | 18V 45W |
| BATTERY INFO | |
| Capacity: | 204.8Wh/256Wh |
| Cell Chemistry: | LiFePO4 |
| Lifecycle : | 2000+ Cycles to 70% Original Capacity |
| GENERAL | |
| Weight: | 2.95/3.18Kg |
| Dimension: | 211*160*196mm |
| Operating Temperature: | -10~40°C |
| Certification: | CE/FCC/PSE/UN38.3/MSDS |
| Structural Characteristics: | ABS Fireproof Enclosure |
| Storage Ambient Temperature: | -20~70°C Without Condensation |

Built for the Modern Off-grid Professional
The structural integrity of this power station is defined by its ABS Fireproof Enclosure, ensuring safety in diverse storage ambient temperatures ranging from -20°C to 70°C. At just approximately 3kg, it represents the ultimate "Grab-and-Go" power solution for:
- Remote Work & Field Research: Powering high-end laptops and communication gear for hours.
- Outdoor Photography & Drones: Sustaining multiple recharges for professional UAV batteries via the DC or AC ports.
- Emergency Home Backup: A silent, emission-free alternative to traditional generators during localized grid failures.
- Van Life & Camping: Seamlessly integrating with an 18V solar input to create a fully sustainable, off-grid energy loop.
FAQ
Q: How does the LiFePO4 chemistry perform in extreme temperatures?
A: Our LiFePO4 cells are rated for an operating range of -10°C to 40°C. For storage, the ABS fireproof enclosure safely withstands -20°C to 70°C.
Q: 2000+ cycles sounds high. What happens to the unit after that?
A: After 2000 full charge/discharge cycles, the battery will still retain approximately 70% of its original capacity. It doesn't stop working; it simply holds less charge. For a typical user, this translates to 6–8 years of reliable daily service.
Q: Can the unit be left plugged into the AC wall outlet indefinitely?
A: Yes. Our integrated BMS includes overcharge protection. Once the battery reaches 100%, the system automatically manages the input to prevent "trickle charge" damage, though we recommend a full discharge/recharge every 3 months for long-term storage.
Q: Can I use third-party solar panels, or am I locked into your brand?
A: The unit is compatible with any 18V solar panel (up to 45W) using a standard DC input. We offer matching foldable solar kits, but the open architecture allows your clients to integrate them with existing portable PV setups.
Q: Do you provide the UN38.3 and MSDS reports for air/sea freight?
A: Yes, we provide a full Dangerous Goods (DG) documentation package, including UN38.3, MSDS, and Drop Test Reports. This ensures a smooth customs clearance process and helps your logistics partners calculate accurate shipping costs.
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