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yewpiny EM300
300W Portable Power Station, Solar Generator 259Wh, 70,000mAh LiFePO4 Battery with 65W USB-C PD&Pure Sine Wave AC, Solar Charging for Camping,Home Backup,Emergency Power(SOS Light & LCD Display)
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Compact 259 Wh LiFePO4 power station with 300 W AC output (600 W peak), pass-through charging, a 65 W USB-C port, two USB-A ports and a DC output. It recharges from AC in about 3 hours and weighs 7.2 lbs (3.3 kg), though its 2,000+ cycle rating is lower than most LiFePO4 rivals and the warranty is 1 year. The title calls the AC output pure sine wave, while the features describe a corrected sine wave.
- Price
- $149.99
- Brand
- yewpiny
Prices from Amazon as of . Product prices and availability are accurate as of the date and time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of the product. As an Amazon Associate I earn from qualifying purchases.
How it compares
Compared with the other portable power stations on this site that list each value:
- Battery capacity is lower than 73% of 123 others: 259 Wh
- Battery capacity is higher than 78% of 83 others: 70 Ah
- Peak wattage is lower than 71% of 98 others: 600 W
- AC outlets count is lower than 81% of 114 others: 1
- Length is lower than 84% of 125 others: 7.72 in. (196 mm)
- Depth/Height is lower than 76% of 125 others: 6.46 in. (164 mm)
Specifications
These details are subject to change and may not be current. Please check Amazon or manufacturer web site to confirm before purchase.
- Model
- EM300
Core specs
- Battery capacity
- 259 Wh
- Battery capacity
- 70 Ah
- Output wattage
- 300 W
- Peak wattage
- 600 W
- Pass-through charging
- Yes
- Cycle lifespan
- 2,000+ Cycles
- Battery chemistry
- LiFePO4
Outlets
- AC outlets count
- 1
- AC outlets description
- 1 x AC Outlet, 300W In Total, 600W Surge
- USB-A ports count
- 2
- USB-A ports description
- 2 x 18W Max., 5V/3A, 9V/2A, 12V/1.5A
Charging
- AC charging time
- ≈3 Hours
- Car charging input
- Yes
Physical Attributes
- Weight
- 7.17 lbs
- Weight
- 3.25 kg
- Length
- 7.72 in.
- Length
- 196 mm
- Width
- 6.93 in.
- Width
- 176 mm
- Depth/Height
- 6.46 in.
- Depth/Height
- 164 mm
More specifications
- Warranty
- 1 Year
Features
Details from the yewpiny EM300 Amazon listing:
- 【High Capacity and Versatile Power】 The EM300 Solar Power Station delivers 300W pure sine wave output (600watt peak) with 259WH/70,000mAh capacity, featuring 110V corrected sine wave AC outlet + 1 USB-C/2 USB-A/2 DC ports/car socket. Safe power emergency for laptops, drones, mini-grids (<300W) and CPAP machines. This power station is the perfect partner for your outdoor adventure, camping, RV travelling or even home backup power.
- 【Long-Lasting LiFePO4 Battery】 Built with a durable LiFePO4 battery, the EM300 offers up to 2000+ charge cycles, ensuring reliable power for nearly 10 years. Its high efficiency and long lifespan make it an excellent choice for off-grid living or long-term power storage. the 300W portable power station can meet your basic power needs, whether outdoors or indoors. With 100W solar panel (sold separately) to achieve renewable energy charging and reduce grid dependence. It also support wall charging (3 hours full charge) / car / solar charging multi-mode.
- 【Fast Charging and Multiple Outputs】 This Power Station has 7 ports, Input: DC(7909) connector:12-20V-5A; Type-C1:5V-3A;9V-3A;12V-3A;15V-3A;20V-3.25A (PD65W Max); Output: DC(5521) connector:12-20V-5A; USB-A1:5V-3A;9V-2A; 12V-1.5A;(18W Max)*2; USB-C1:5V-3A;9V-3A;12V-3A;15V-3A;20V-3.25A (PD65W Max); USB-C2:5V-3A;9V-3A;12V-3.25A (PD36W Max); AC:300W corrected sine wave output, suitable for AC 220V-240V, 1.25A, 300W or less.
- 【Advanced Safety and Durability】 Configuration of multiple protection mechanisms: Portable AC outlet power box built-in BMS, with short circuit protection, over-current protection, over-voltage protection and overload protection. Intelligent cooling system will automatically turn on when the equipment temperature is high to keep the equipment at a constant temperature without the need to continuously run the fan. Portable AC outlet design makes the power station more suitable for tent camping and RV living.
- 【Portable and Solar-Ready Design】 Weighing just 7.17 lbs with a built-in handle, the EM300 is easy to carry for outdoor adventures. It supports solar charging and pass-through charging, allowing you to recharge while powering devices, making it ideal for camping, road trips, and emergencies.
Similar products from other brands
Chosen for their similar specifications and price.
 This productyewpiny EM300 |
 DaranEner NEOZ2 |
 BLUETTI Elite 10 Mini |
 GRECELL EB300 / T300 / T300S |
|
|---|---|---|---|---|
| Price | $149.99 | $129.99 | $113.00 | $149.99 |
| Model | EM300 | NEOZ2 | Elite 10 Mini | EB300 / T300 / T300S |
| Popular brand | – | No | Yes | No |
| Battery capacity (Wh) | 259 | 192 | 128 | 230 |
| Battery capacity (Ah) | 70 | 15 | 20 | 10 |
| Output wattage (W) | 300 | 300 | 200 | 330 |
| Peak wattage (W) | 600 | 600 | 400 | 600 |
| Pass-through charging | Yes | – | Yes | Yes |
| Cycle lifespan | 2,000+ Cycles | 3,500+ Cycles to 80% Original Capacity | 3,000+ Cycles to 80% Original Capacity | – |
| Battery chemistry | LiFePO4 | LiFePO4 | LiFePO4 | Lithium-ion (NCM) |
| Solar charge controller | – | MPPT | – | MPPT |
| Inverter type | – | Pure Sine Wave | Pure Sine Wave | Pure Sine Wave |
| UPS switchover (ms) | – | – | 10 | – |
| Voltage (V) | – | 120 | 120 | 110 |
| Frequency (Hz) | – | 60 | 60 | 60 |
| Noise level (dB) | – | 50 | 45 | – |
| App connectivity | – | – | Bluetooth | – |
| AC outlets count | 1 | 2 | 1 | 1 |
| AC outlets description | 1 x AC Outlet, 300W In Total, 600W Surge | 2 x 120V AC Outlet, 300W In Total, 600W Surge, 60Hz | 200W in Total, 120V, 60Hz | 1 x 110V AC Outlet, 330W In Total, 600W Surge, 60Hz |
| USB-A ports count | 2 | 2 | 2 | 2 |
| USB-A ports description | 2 x 18W Max., 5V/3A, 9V/2A, 12V/1.5A | 2 x 18W (Each Port) | 2 x 15W, 5V/3A | 2 x 18W (Each Port) |
| USB-C ports count | – | 1 | 2 | 2 |
| USB-C ports description | – | 1 x 60W Max. | 1 x 100W Max., 1 x 15W Max. | 1 x 60W Max., 1 x 18W Max. |
| 12V DC outlets count | – | 1 | 1 | 1 |
| 12V DC outlets description | – | 1 x DC5521 Port 12V/10A, 120W Max. | 1 x DC5521 Port 13.5V/5A (12.5V/5A Adjustable) | 1 x 12V/10A (Car Outlet) |
| 48V DC outlets count | – | 0 | 0 | 0 |
| 240V output | – | No | No | No |
| RV TT-30 outlet | – | No | No | No |
| Max charging input (W) | – | 100 | 150 | 45 |
| AC charging input | – | 120W Max., 100-120V | 150W Max. | 45W Max. (AC/DC adapter, 100-240V in, 15V 3A out) |
| AC charging time | ≈3 Hours | ≈1.5 Hours | 45min to 80%,70min to 100% | ≈6-7 Hours |
| Solar inputs count | – | 1 | 1 | 1 |
| Solar charging input | – | 90W Max., 10-30V | 100W Max., 12-28V, 8.2A Max. | 45W Max., 12-26V |
| Solar input voltage | – | 10 to 30V DC | 12 to 28V DC | 12 to 26V DC |
| Solar charging time | – | ≈2 Hours | 80% in ≈1.1 Hours (100W) | ≈5-9 Hours (100W) |
| Solar panel connector | – | – | XT60 | DC7909 (MC4 to DC7909 solar charging cable included) |
| Car charging input | Yes | Yes | 100W Max., 12/24V from Cigarette Lighter Port | 45W Max., 12V from Cigarette Lighter Port |
| Car charging time | – | ≈2 Hours | – | ≈7-9 Hours (12V) |
| Charging temp min (℉) | – | – | 32 | 32 |
| Charging temp max (℉) | – | – | 104 | 104 |
| Charging temp min (℃) | – | – | 0 | 0 |
| Charging temp max (℃) | – | – | 40 | 40 |
| Discharging temp min (℉) | – | 14 | -4 | 14 |
| Discharging temp max (℉) | – | 113 | 104 | 104 |
| Discharging temp min (℃) | – | -10 | -20 | -10 |
| Discharging temp max (℃) | – | 45 | 40 | 40 |
| Storage temp min (℉) | – | – | -4 | -4 |
| Storage temp max (℉) | – | – | 104 | 113 |
| Storage temp min (℃) | – | – | -20 | -20 |
| Storage temp max (℃) | – | – | 40 | 45 |
| Weight (lbs) | 7.17 | 6.06 | 4.00 | 7.28 |
| Weight (kg) | 3.25 | 2.75 | 2.00 | 3.30 |
| Length (in.) | 7.72 | 8.66 | 7.87 | 6.70 |
| Length (mm) | 196 | 220 | 200 | 170 |
| Width (in.) | 6.93 | 7.08 | 5.75 | 9.60 |
| Width (mm) | 176 | 180 | 146 | 234 |
| Depth/Height (in.) | 6.46 | 5.10 | 4.33 | 6.90 |
| Depth/Height (mm) | 164 | 130 | 110 | 177 |
| Built-in wheels | – | No | No | No |
| IP rating | – | – | IP20 | – |
| Certifications summary | – | FCC Part 15 Class B statement | FCC Part 15 Class B and ISED/IC compliance statement | – |
| FCC Part 15 compliant | – | Yes | Yes | – |
| Warranty | 1 Year | 5 Years | – | 2 Years |
Specifications last updated Oct 20, 2026.