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EnginStar R300
EnginStar Portable Power Station 300W 296Wh Solar Generator | Pure Sine Wave AC Outlet for Outdoors Camping Travel and Emergency Blackout, 80000mAh Backup Battery Power Supply for CPAP
In Stock
- Price
- $149.99
- Brand
- EnginStar
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 71% of 88 others: 20 Ah
- Voltage is lower than 75% of 107 others: 110 V
- Max charging input is lower than 92% of 55 others: 65 W
- Weight is lower than 74% of 138 others: 6.50 lbs (2.95 kg)
- Length is lower than 70% of 139 others: 9.06 in. (230 mm)
- Width is lower than 77% of 139 others: 5.51 in. (140 mm)
Specifications
These details are subject to change and may not be current. Please check Amazon or manufacturer web site to confirm before purchase.
Core specs
- Battery capacity
- 296 Wh
- Battery capacity
- 20 Ah
- Output wattage
- 300 W
- Pass-through charging
- Yes
- Cycle lifespan
- 1,000+ Cycles
- Battery chemistry
- Lithium-ion
Internals
- Inverter type
- Pure Sine Wave
- Voltage
- 110 V
- Frequency
- 60 Hz
Outlets
- AC outlets count
- 2
- AC outlets description
- 2 x 110V AC Outlet, 300W In Total, 60Hz
- USB-A ports count
- 2
- USB-A ports description
- 2 x USB-A, 5V/3.1A
- USB-C ports count
- 1
- USB-C ports description
- 1 x 18W Max.
- 12V DC outlets count
- 2
- 12V DC outlets description
- 1 x 12V/8A (Car Outlet), 1 x DC5521 Port 12V/8A
- 48V DC outlets count
- 0
- 240V output
- No
- RV TT-30 outlet
- No
Charging
- Max charging input
- 65 W
- AC charging input
- 65W Max., 19V/3.42A Adapter
- AC charging time
- ≈7 Hours
- Solar inputs count
- 1
- Solar charging input
- 12-25V, 3.42A Max. (50-100W panels recommended)
- Solar input voltage
- 12 to 25V DC
- Car charging input
- 12V from Cigarette Lighter Port
Temperature Range
- Discharging temp min
- 14 ℉
- Discharging temp max
- 104 ℉
- Discharging temp min
- -10 ℃
- Discharging temp max
- 40 ℃
Physical Attributes
- Weight
- 6.50 lbs
- Weight
- 2.95 kg
- Length
- 9.06 in.
- Length
- 230 mm
- Width
- 5.51 in.
- Width
- 140 mm
- Depth/Height
- 7.64 in.
- Depth/Height
- 194 mm
- Built-in wheels
- No
Certifications
- Certifications summary
- FCC Part 15 Class B statement
- FCC Part 15 compliant
- Yes
- NRTL safety listed (UL/ETL/CSA)
- Yes
More specifications
- Warranty
- 1 Year
Features
Details from the EnginStar R300 Amazon listing:
- PORTABLE BUT POWERFUL: EnginStar Portable Power Station with ETL Certification, and the portable size of 9 x 5.5 x 7.5 inches, weights only 6.5 pounds, but armed with 296wh capacity and 300W AC output, EnginStar portable power station can provide enough juice to charge your phones, laptop, camera, cpap, drone, etc. Designed with 8 output ports can charge several devices at the same time, which make it a perfect emergency battery, outdoor and camping backup battery
- 110V PURE SINE WAVE & MULTIPORT: Built with two 110V pure sine wave AC outlets to make sure the solar generator (solar panel not included) works quieter, more efficient and more stable, which can protect your sensitive devices from damage such as laptop. 2 Regulated DC outputs (12V/24V) can provide a stable power output for DC appliances such as mini-fridge or car vacuum cleaner. Fast charger USB (5V/3.1A Max) and USB-C (18W)
- SUPERIOR PROTECTION SYSTEM: EnginStar camping power station with a advanced battery management system of voltage control and temperature control, the multiple safe-charging design can protect the battery bank from the damage of short circuit, overcharging and overload, to make sure you use it efficiently and safely. 100% original high quality lithium ion batteries support more than 1000 times of charge cycle
- 3 CHARGING WAYS POWER SUPPLY: 1) The solar power generator can be charged with any compatible 12-25V solar panel (panel not included), built-in controller speeds up the battery recharge rate. 2) The portable power station with ac outlet can be charged via being plugged into wall outlet. 3) The portable ac battery bank can be charged from 12V socket of the car. At a maximum charging speed of 65W, it can be charged 80% in 2 hours.
- Package Contain and Battery Maintain: 1*EnginStar Rechargeable Electrical Power Station, 1*User Manual, 1*Home Charger, 1*car charger cable, 12 months limited service time(from the date of purchase); Recommend fully charge it every 2-3 months to keep the power station in good work condition, recharge in time before drain all the power
Similar products from other brands
Chosen for their similar specifications and price.
 This productEnginStar R300 |
 GRECELL EB300 / T300 / T300S |
 DaranEner NEOZ2 |
 Jackery Explorer 300 |
|
|---|---|---|---|---|
| Price | $149.99 | $149.99 | $129.99 | $259.00 |
| Model | R300 | EB300 / T300 / T300S | NEOZ2 | Explorer 300 |
| Popular brand | No | No | No | Yes |
| Battery capacity (Wh) | 296 | 230 | 192 | 292 |
| Battery capacity (Ah) | 20 | 10 | 15 | 20 |
| Output wattage (W) | 300 | 330 | 300 | 300 |
| Peak wattage (W) | – | 600 | 600 | 600 |
| Pass-through charging | Yes | Yes | – | Yes |
| Cycle lifespan | 1,000+ Cycles | – | 3,500+ Cycles to 80% Original Capacity | 4,000+ Cycles to 70% Original Capacity |
| Battery chemistry | Lithium-ion | Lithium-ion (NCM) | LiFePO4 | LiFePO4 |
| Solar charge controller | – | MPPT | MPPT | MPPT |
| Inverter type | Pure Sine Wave | Pure Sine Wave | Pure Sine Wave | Pure Sine Wave |
| Voltage (V) | 110 | 110 | 120 | 110 |
| Frequency (Hz) | 60 | 60 | 60 | 60 |
| Noise level (dB) | – | – | 50 | 36 |
| AC outlets count | 2 | 1 | 2 | 2 |
| AC outlets description | 2 x 110V AC Outlet, 300W In Total, 60Hz | 1 x 110V AC Outlet, 330W In Total, 600W Surge, 60Hz | 2 x 120V AC Outlet, 300W In Total, 600W Surge, 60Hz | 2 x AC Outlet, 300W In Total, 600W Surge |
| USB-A ports count | 2 | 2 | 2 | 2 |
| USB-A ports description | 2 x USB-A, 5V/3.1A | 2 x 18W (Each Port) | 2 x 18W (Each Port) | 2 x USB-A |
| USB-C ports count | 1 | 2 | 1 | 1 |
| USB-C ports description | 1 x 18W Max. | 1 x 60W Max., 1 x 18W Max. | 1 x 60W Max. | 1 x 100W Max. |
| 12V DC outlets count | 2 | 1 | 1 | 1 |
| 12V DC outlets description | 1 x 12V/8A (Car Outlet), 1 x DC5521 Port 12V/8A | 1 x 12V/10A (Car Outlet) | 1 x DC5521 Port 12V/10A, 120W Max. | 1 x Car Port, 120W Max. |
| 48V DC outlets count | 0 | 0 | 0 | – |
| 240V output | No | No | No | – |
| RV TT-30 outlet | No | No | No | – |
| Max charging input (W) | 65 | 45 | 100 | 150 |
| AC charging input | 65W Max., 19V/3.42A Adapter | 45W Max. (AC/DC adapter, 100-240V in, 15V 3A out) | 120W Max., 100-120V | 90W Max. (AC adapter), (AC adapter + USB-C PD) 150W Max. |
| AC charging time | ≈7 Hours | ≈6-7 Hours | ≈1.5 Hours | ≈4.5 Hours, ≈2.5 Hours (AC adapter + 60W USB-C PD) |
| Solar inputs count | 1 | 1 | 1 | 1 |
| Solar charging input | 12-25V, 3.42A Max. (50-100W panels recommended) | 45W Max., 12-26V | 90W Max., 10-30V | 12-30V, 7.2A Max. (12-23V), 3.75A Max. (23-30V) |
| Solar input voltage | 12 to 25V DC | 12 to 26V DC | 10 to 30V DC | 12 to 30V DC |
| Solar charging time | – | ≈5-9 Hours (100W) | ≈2 Hours | 80% in ≈2.8 Hours (100W), 80% in 7.5 Hours (40W) |
| Solar panel connector | – | DC7909 (MC4 to DC7909 solar charging cable included) | – | DC7909 |
| Car charging input | 12V from Cigarette Lighter Port | 45W Max., 12V from Cigarette Lighter Port | Yes | Yes |
| Car charging time | – | ≈7-9 Hours (12V) | ≈2 Hours | ≈5 Hours (12V) |
| Charging temp min (℉) | – | 32 | – | 32 |
| Charging temp max (℉) | – | 104 | – | 95 |
| Charging temp min (℃) | – | 0 | – | 0 |
| Charging temp max (℃) | – | 40 | – | 35 |
| Discharging temp min (℉) | 14 | 14 | 14 | 14 |
| Discharging temp max (℉) | 104 | 104 | 113 | 104 |
| Discharging temp min (℃) | -10 | -10 | -10 | -10 |
| Discharging temp max (℃) | 40 | 40 | 45 | 40 |
| Storage temp min (℉) | – | -4 | – | -4 |
| Storage temp max (℉) | – | 113 | – | 77 |
| Storage temp min (℃) | – | -20 | – | -20 |
| Storage temp max (℃) | – | 45 | – | 25 |
| Weight (lbs) | 6.50 | 7.28 | 6.06 | 7.00 |
| Weight (kg) | 2.95 | 3.30 | 2.75 | 3.00 |
| Length (in.) | 9.06 | 6.70 | 8.66 | 9.10 |
| Length (mm) | 230 | 170 | 220 | 231 |
| Width (in.) | 5.51 | 9.60 | 7.08 | 5.20 |
| Width (mm) | 140 | 234 | 180 | 132 |
| Depth/Height (in.) | 7.64 | 6.90 | 5.10 | 7.80 |
| Depth/Height (mm) | 194 | 177 | 130 | 198 |
| Built-in wheels | No | No | No | No |
| Certifications summary | FCC Part 15 Class B statement | – | FCC Part 15 Class B statement | – |
| FCC Part 15 compliant | Yes | – | Yes | – |
| NRTL safety listed (UL/ETL/CSA) | Yes | – | – | – |
| Warranty | 1 Year | 2 Years | 5 Years | 2 Years |
Data sources
Data for this product compiled from this source:
Specifications last updated Oct 12, 2026.