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EnginStar R300
EnginStar Solar Generator, 300W Portable Power Station, 296Wh Lithium Battery Backup w/Two 110V Pure Sine Wave AC Outlet for Camping Road Trip RV, 80000mAh Sufficient Power Supply for Blackout
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.
Ranking within Category
Comparing this product to others on Nomad Gear Finder (in the portable power stations category with a value specified):
- This product's Voltage is lower than 77% of 107 others: 110 V
- This product's Charging temp min is the highest of 88: 50 ℉ (10 ℃)
- This product's Charging temp max is the lowest of 87: 86 ℉ (30 ℃)
- This product's Storage temp min is higher than 98% of 68 others: 40 ℉ (4 ℃)
- This product's Storage temp max is lower than 91% of 70 others: 100 ℉ (35 ℃)
- This product's Width is lower than 78% of 138 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., 5V/3A, 9V/2A, 12V/1.5A
- 12V DC outlets count
- 2
- 12V DC outlets description
- 1 x 12V/8A (Car Outlet), 1 x DC5521 Port 12V/8A, 1 x 24V/3A DC Port
- 48V DC outlets count
- 0
- 240V output
- No
- RV TT-30 outlet
- No
Charging
- AC charging input
- AC/DC adapter, 19V 3.42A out
- AC charging time
- ≈7 Hours
- Solar inputs count
- 1
- Solar charging input
- 12V-25V, 3.42A Max. (50-100W panel recommended)
- Solar input voltage
- 12 to 25V DC
- Car charging input
- 12V from Cigarette Lighter Port
Temperature Range
- Charging temp min
- 50 ℉
- Charging temp max
- 86 ℉
- Charging temp min
- 10 ℃
- Charging temp max
- 30 ℃
- Discharging temp min
- 14 ℉
- Discharging temp max
- 104 ℉
- Discharging temp min
- -10 ℃
- Discharging temp max
- 40 ℃
- Storage temp min
- 40 ℉
- Storage temp max
- 100 ℉
- Storage temp min
- 4 ℃
- Storage temp max
- 35 ℃
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
More specifications
- Warranty
- 1 Year
Features
Details from the EnginStar R300 Amazon listing:
- Portable & High Capability Portable Power Station 300w - with 9 x 5.5 x 7.5 inch body size, compact and easy carry on the go, 300 watt-hours capability of power, great companion for outdoor off-grid activities, 80000Amh sufficient to power for extending explore nature, camping, travel, hunting, and more
- Cleaner & Reliable Power Supply - 300 watt solar generator with smart battery management system manages, Two pure sine wave AC output provide stable power; cleaner power supply with built in lithium battery, easy to recharge; Equipped with 8 outputs: 2x 110V AC ports, 3x USB output (including 1x USB C 18W), 1x 12V Car port, 1x 12V DC, 1 x 24V DC 5.5x2.1mm barrel ports, multiple devices charge at the same time with both AC and DC outlets
- EnginStar 300w power station with multiple recharge options: EnginStar solar power generator can Quickly recharge with AC wall adapter stay at home(fully charge in 7 hours), connect with solar panel 12-25V solar panel (solar panel sold separately in EnginStar store) in sunny day outside, or car charger on the go of road trip
- ADVANCED PROTECTION SYSTEM: 300w battery pack equipped with overloading, over discharging, overcharging, overheating, and short circuits, reliable performance, extensively tested and certified by battery standards set by UL, 1000 cycles rechargeable power bank, longer life span
- 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
- Tips for protecting battery station: 1. Fully charge the electricity power station before using 2. If it is not used for a long time, the stored battery should be recharged every 3-6 months, and it is appropriate to keep it at 40%-70%. Recharging the battery before it is completely exhausted 3. The battery should be stored in a dry environment at 40°F~100°F (4°C~35°C) or in moisture-proof packaging. Keep away from heat sources, and don’t place it in direct sunlight
- Note: 1. This 300w portable generator only support lower than 300Watt Hour device, it may not support large capacity product（Electric Grill/ Induction cooker/ Microwave/ Refrigerator/ Heater) and more 2. It is normal when you turn on the ac output button, the red triangle shows up for checking AC output and will disappear in 3-5 second
Similar products from other brands
Chosen for their similar specs and price:
 This productEnginStar R300 |
 GRECELL EB300 / T300 / T300S |
 ZeroKor R200 |
 Jackery Explorer 300 |
|
|---|---|---|---|---|
| Price | $149.99 | $169.99 | $139.98 | $259.00 |
| Model | R300 | EB300 / T300 / T300S | R200 | Explorer 300 |
| Popular brand | No | No | No | Yes |
| Battery capacity (Wh) | 296 | 230 | 280 | 292 |
| Battery capacity (Ah) | 20 | 10 | – | 20 |
| Output wattage (W) | 300 | 330 | 300 | 300 |
| Peak wattage (W) | – | 600 | – | 600 |
| Pass-through charging | Yes | Yes | No | Yes |
| Cycle lifespan | 1,000+ Cycles | – | 1,000+ Cycles | 4,000+ Cycles to 70% Original Capacity |
| Battery chemistry | Lithium-ion | Lithium-ion (NCM) | Lithium-ion | LiFePO4 |
| Solar charge controller | – | MPPT | MPPT | MPPT |
| Inverter type | Pure Sine Wave | Pure Sine Wave | – | Pure Sine Wave |
| Voltage (V) | 110 | 110 | 110 | 110 |
| Frequency (Hz) | 60 | 60 | 60 | 60 |
| Noise level (dB) | – | – | – | 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 110V AC Outlet, 300W In Total, 60Hz | 2 x AC Outlet, 300W In Total, 600W Surge |
| USB-A ports count | 2 | 2 | 4 | 2 |
| USB-A ports description | 2 x USB-A, 5V/3.1A | 2 x 18W (Each Port) | 1 x 5V/3A, 9V/2A Max. (QC), 3 x 5V/3.1A Max. (Shared) | 2 x USB-A |
| USB-C ports count | 1 | 2 | – | 1 |
| USB-C ports description | 1 x 18W Max., 5V/3A, 9V/2A, 12V/1.5A | 1 x 60W Max., 1 x 18W 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 24V/3A DC Port | 1 x 12V/10A (Car Outlet) | 1 x 9-12.6V/10A DC Output | 1 x Car Port, 120W Max. |
| 48V DC outlets count | 0 | 0 | – | – |
| 240V output | No | No | – | – |
| RV TT-30 outlet | No | No | – | – |
| Max charging input (W) | – | 45 | – | 150 |
| AC charging input | AC/DC adapter, 19V 3.42A out | 45W Max. (AC/DC adapter, 100-240V in, 15V 3A out) | – | 90W Max. (AC adapter), (AC adapter + USB-C PD) 150W Max. |
| AC charging time | ≈7 Hours | ≈6-7 Hours | – | ≈4.5 Hours, ≈2.5 Hours (AC adapter + 60W USB-C PD) |
| Solar inputs count | 1 | 1 | 1 | 1 |
| Solar charging input | 12V-25V, 3.42A Max. (50-100W panel recommended) | 45W Max., 12-26V | 13V-23V, 2.4A Max. | 12-30V, 7.2A Max. (12-23V), 3.75A Max. (23-30V) |
| Solar input voltage | 12 to 25V DC | 12 to 26V DC | 13 to 23V DC | 12 to 30V DC |
| Solar charging time | – | ≈5-9 Hours (100W) | – | 80% in ≈2.8 Hours (100W), 80% in 7.5 Hours (40W) |
| Solar panel connector | – | DC7909 (MC4 to DC7909 solar charging cable included) | DC5521 | DC7909 |
| Car charging input | 12V from Cigarette Lighter Port | 45W Max., 12V from Cigarette Lighter Port | 12V from Cigarette Lighter Port | Yes |
| Car charging time | – | ≈7-9 Hours (12V) | – | ≈5 Hours (12V) |
| Charging temp min (℉) | 50 | 32 | 32 | 32 |
| Charging temp max (℉) | 86 | 104 | 104 | 95 |
| Charging temp min (℃) | 10 | 0 | 0 | 0 |
| Charging temp max (℃) | 30 | 40 | 40 | 35 |
| Discharging temp min (℉) | 14 | 14 | 14 | 14 |
| Discharging temp max (℉) | 104 | 104 | 104 | 104 |
| Discharging temp min (℃) | -10 | -10 | -10 | -10 |
| Discharging temp max (℃) | 40 | 40 | 40 | 40 |
| Storage temp min (℉) | 40 | -4 | 32 | -4 |
| Storage temp max (℉) | 100 | 113 | 104 | 77 |
| Storage temp min (℃) | 4 | -20 | 0 | -20 |
| Storage temp max (℃) | 35 | 45 | 40 | 25 |
| Weight (lbs) | 6.50 | 7.28 | 5.00 | 7.00 |
| Weight (kg) | 2.95 | 3.30 | 2.30 | 3.00 |
| Length (in.) | 9.06 | 6.70 | 8.50 | 9.10 |
| Length (mm) | 230 | 170 | 216 | 231 |
| Width (in.) | 5.51 | 9.60 | 6.70 | 5.20 |
| Width (mm) | 140 | 234 | 171 | 132 |
| Depth/Height (in.) | 7.64 | 6.90 | 4.10 | 7.80 |
| Depth/Height (mm) | 194 | 177 | 105 | 198 |
| Built-in wheels | No | No | No | No |
| Certifications summary | FCC Part 15 Class B statement | – | FCC Part 15 statement | – |
| FCC Part 15 compliant | Yes | – | Yes | – |
| Warranty | 1 Year | 2 Years | 14 Months | 2 Years |
Data sources
Data for this product compiled from this source:
Specifications last updated Oct 12, 2026.