EF ECOFLOW DELTA 2 Smart Extra Battery, vs PROGENY 300W Portable Power Station,
Updated July 2026 — EF ECOFLOW DELTA 2 Smart Extra Battery, wins on cycles and capacity, PROGENY 300W Portable Power Station, wins on charging time.
The EF ECOFLOW DELTA 2 Smart Extra Battery is the superior choice for high-capacity power needs, while the PROGENY 300W Portable Power Station is a budget-friendly option for light use.
Why EF ECOFLOW DELTA 2 Smart Extra Battery, is better
Higher Capacity
DELTA 2 has 1024Wh vs PROGENY's 299Wh
More Outputs
DELTA 2 supports 15 outlets vs PROGENY's 1 outlet
Faster Charging
DELTA 2 charges to 80% in 80 mins vs PROGENY's 6-7 hours
Why PROGENY 300W Portable Power Station, is better
Lightweight
PROGENY weighs only 7 lbs vs DELTA 2's heavier design
Lower Price
PROGENY costs $99.98 vs DELTA 2's $379.00
Compact Size
PROGENY is more portable for outdoor activities
Overall score
Specifications
| Spec | EF ECOFLOW DELTA 2 Smart Extra Battery, | PROGENY 300W Portable Power Station, |
|---|---|---|
| Battery Type | LiFePO4 | Lithium-ion |
| Power Output | 1800W | 300W |
| USB Ports | Multiple | 1 |
| Solar Charging | Yes | Yes |
| Safety Features | Advanced BMS | BMS |
Dimension comparison
Overview of the Products
The EF ECOFLOW DELTA 2 Smart Extra Battery and the PROGENY 300W Portable Power Station both serve as solutions for portable power needs, but they cater to different user requirements. The DELTA 2 Smart Extra Battery is designed to expand the power capacity of the DELTA 2, while the PROGENY is a compact power station ideal for a range of everyday uses.
The DELTA 2 Smart Extra Battery, priced at $379.00, offers a substantial 1024Wh capacity, making it suitable for extensive power demands. In contrast, the PROGENY 300W Portable Power Station comes at a budget-friendly price of $99.98, providing 299Wh, which is adequate for smaller devices and short trips.
Capacity and Power
When it comes to capacity, the DELTA 2 Smart Extra Battery significantly outshines the PROGENY. The DELTA 2 boasts a capacity of 1024Wh, allowing it to support a broader range of devices, powering them for longer periods. This added capacity can be particularly beneficial for users needing to power multiple appliances or requiring backup power during extended outages.
On the other hand, the PROGENY, with its 299Wh capacity, is ideal for charging smaller devices like smartphones and laptops multiple times but may fall short for larger appliances. It can charge a smartphone approximately 40 times or a mini-fridge for about 6-18 hours, making it suitable for camping and short trips.
Portability and Weight
The PROGENY 300W Portable Power Station excels in portability due to its compact size and lightweight design, weighing just 7 lbs. This makes it highly convenient for outdoor activities like camping or fishing, where ease of transport is crucial.
Conversely, the DELTA 2 Smart Extra Battery, while larger and heavier due to its significantly higher capacity, may not be as convenient for on-the-go use. It requires pairing with the DELTA 2 power station, which adds to the overall weight. Therefore, users must consider their specific needs for portability versus power.
Charging Options
Both products offer versatile charging options, but the DELTA 2 Smart Extra Battery provides a wider range of methods. It can be charged using AC outlets, car outlets, solar panels, or even a Smart Generator, achieving a rapid charge of 0-80% in just 80 minutes. This flexibility is a significant advantage for users who need quick and diverse charging methods.
In contrast, the PROGENY also supports multiple charging methods, including solar, car, and AC charging, but its recharge times are not explicitly stated. It features a built-in MPPT technology for faster solar recharge rates, capable of being fully charged via an AC wall outlet within 6-7 hours, which is still efficient but may not match the speed of the DELTA 2.
Output and Versatility
The DELTA 2 Smart Extra Battery offers an impressive output capability of 1800W with 15 outlets when paired with the DELTA 2. This allows it to power up to 90% of home appliances, making it a versatile choice for home backup power as well as outdoor use.
On the other hand, the PROGENY features a single pure sine wave AC outlet with a 300W rated power, which may limit its functionality for larger devices. However, it is still capable of supplying power to smaller electronics effectively, positioning it as a reliable option for light use.
Safety Features
Safety is a crucial aspect of any power station, and both products implement solid measures. The PROGENY incorporates a battery management system (BMS) that enhances battery safety through various protections, including short protection and overvoltage protection, ensuring that devices are charged safely.
The DELTA 2 Smart Extra Battery also emphasizes safety with its advanced LFP battery chemistry, known for longevity and safety, and it is designed for regular use with over 3000 cycles. This focus on durability and safety makes the DELTA 2 an appealing choice for long-term investment.
Price Comparison
Price is a significant factor when choosing between the two products. The DELTA 2 Smart Extra Battery is priced at $379.00, while the PROGENY is much more affordable at $99.98, making it about 73% cheaper. This substantial price difference may sway budget-conscious consumers toward the PROGENY, especially if their power needs are minimal.
However, the higher price of the DELTA 2 is justified by its superior capacity and versatility, suggesting that it might be a better choice for users with more demanding power requirements.
Which should you buy?
Choosing between the EF ECOFLOW DELTA 2 Smart Extra Battery and the PROGENY 300W Portable Power Station ultimately depends on your specific power needs and usage scenarios. If you require a high-capacity solution for extensive power demands, the DELTA 2 is the clear winner with its 1024Wh capacity, multiple outputs, and faster charging options. However, if you prioritize portability and affordability for light use, the PROGENY offers an attractive and budget-friendly alternative. Consider what features matter most to you, whether it’s capacity, weight, or price, to make the best decision for your portable power needs.

