Compact 270Wh mobile power supply with 300W pure sine wave AC output, multi-port DC/USB/Type-C fast charging, and solar panel charging compatibility. Ideal for power outages, outdoor work, night markets, emergency relief, medical use, and home backup.
Key Highlights
- 270Wh (72,800mAh @3.7V) high energy-density lithium battery; pack voltage 14.8V.
- 300W continuous pure sine wave AC output for sensitive electronics.
- Rich I/O: 1× USB QC3.0 18W, 1× Type-C QC3.0 PD 18W, 2× USB 5V/2A, 2× DC 12–16.8V 10A, 1× 12–16.8V 10A cigarette-lighter socket.
- Solar recharge supported: DC5521 18–28V/2.0A input; adapter charging DC19V/2.0A (≈8h).
- 2W LED lighting, handy for camping and outages.
- >1000 cycles lifecycle; comprehensive protections: short-circuit/over-current/over-voltage/under-voltage/overload/over-temperature.
- Portable & durable: ABS housing, net weight about 2.9 kg, compact size 235×150×158 mm.
- Wide temperature range: works from −10℃ to 40℃.
Specifications
| General Parameters | |
|---|---|
| Built-in Battery | High-energy-density lithium battery |
| Battery Capacity | 270Wh / 72,800mAh / 3.7V |
| AC Output | 1× AC pure sine wave |
| AC Continuous Output Power | 300W |
| DC/USB Outputs | 1× USB (5–12V, QC3.0 18W) 1× Type-C (5–12V, QC3.0 PD 18W) 2× USB (5V/2A) 2× DC (12–16.8V, 10A) 1× DC Cigarette Lighter (12–16.8V, 10A) |
| Lighting | 2W LED |
| Operating Temperature | −10℃ ~ 40℃ |
| Cycle Life | >1000 cycles |
| Charging | |
| Adapter Charging Spec | DC 19V / 2.0A |
| Solar Charging Spec | DC5521 18–28V / 2.0A |
| Charging Time (Adapter) | Approx. 8 hours |
| Protection | |
| Safety Protections | a) Short-circuit b) Over-current c) Over-voltage d) Under-voltage e) Overload f) Over-temperature |
| Adapter Parameters | |
| Output | 19V 2A |
| DC Port | 5521 |
| Battery Cells | |
| Cell Type / Size | 18650 |
| Single Cell Capacity | 2600mAh |
| Configuration | 4S7P (4 series, 7 parallel) |
| Cell Nominal Voltage | 3.7V |
| Pack Voltage | 14.8V |
| Charge/Discharge Life | >1000 cycles |
| Mechanical | |
| Product Size (L×W×H) | 235 × 150 × 158 mm |
| Net Weight | 2.9 kg |
| Material | ABS plastic |
| Color | Black + Orange |
| Packaging | |
| What’s in the Box | 1× Portable Emergency Power Station, 1× Charger, 1× User Manual |
| Inner Box Size | 308 × 190 × 207 mm |
| Inner Box Weight | 3.4 kg |
| Outer Carton Size | 625 × 320 × 241 mm |
| Quantity per Carton | 3 pcs/CTN |
| Carton Gross Weight | 10.9 kg |
| Use Scenarios | |
| Applications | Power outages, outdoor operations, night-market power, emergency & disaster relief, medical use, home energy supply |


270Wh 300W Portable Power Station
270Wh 300W Portable Power Station is a portable battery power solution for outdoor use, emergency backup and small electronics. It is easier to use than a standalone inverter because the battery and AC output are built into one unit.
Main Specification
Capacity: 270Wh; AC output: 300W class. Confirm ports and output limits before connecting devices.
Device Compatibility Guide
| Device Type | Usually Suitable? | What to Check First |
|---|---|---|
| Phone / Laptop Charging | Usually yes | Check port output and total connected load. |
| LED Lights / Camera Gear | Usually yes | Check device wattage and runtime needs. |
| Small Fan / TV | Usually yes | Check rated watts. |
| Mini Fridge | Depends | Check compressor startup surge and runtime needs. |
| Coffee Maker / Microwave | Depends | Heating loads may require more power and drain batteries quickly. |
| Heater / Air Conditioner | Caution | High continuous loads are usually not ideal for small systems. |
Best Use
Camping, travel, phone charging, laptops, lights and small fans.
Use Limits
For portable power stations, runtime depends on battery capacity in Wh, AC output limit, device wattage and conversion loss. Do not connect devices that exceed the continuous AC output.
Product FAQs
What is 270Wh 300W Portable Power Station best for?
Camping, travel, phone charging, laptops, lights and small fans.
What should I check before use?
Check continuous output, startup surge, battery capacity or runtime, voltage compatibility, cable size, fuse protection and ventilation.
Can it run a refrigerator?
It depends on the refrigerator’s running watts and compressor startup surge. Always check the appliance label first.
Can it run a microwave or coffee maker?
Only if the rated watts and startup demand stay within the product’s continuous and surge limits. Heating devices can drain batteries quickly.
What is the main safety reminder?
For portable power stations, runtime depends on battery capacity in Wh, AC output limit, device wattage and conversion loss. Do not connect devices that exceed the continuous AC output.