EF ECOFLOW DELTA 2 Smart Extra Battery, vs HOWEASY Portable Power Station,135W Solar
Updated July 2026 — EF ECOFLOW DELTA 2 Smart Extra Battery, wins on capacity and outputs, HOWEASY Portable Power Station,135W Solar wins on weight and size.
The EF ECOFLOW DELTA 2 Smart Extra Battery offers superior capacity and versatility compared to the HOWEASY Portable Power Station, making it the better choice for extensive power needs.
Why EF ECOFLOW DELTA 2 Smart Extra Battery, is better
Higher Capacity
1024Wh vs 98Wh
More Outputs
15 outlets vs 7 outputs
Faster Charging
0-80% in 80 mins vs 80% in 1 hour
Why HOWEASY Portable Power Station,135W Solar is better
Lower Price
$379 vs $109
Lightweight
2.3 lbs vs heavier
Compact Size
6.6 x 4 x 3 inches vs larger dimensions
Overall score
Specifications
| Spec | EF ECOFLOW DELTA 2 Smart Extra Battery, | HOWEASY Portable Power Station,135W Solar |
|---|---|---|
| Power Output | 1800W | 135W |
| Battery Type | LiFePO4 | Lithium |
| Solar Charging | Yes | Yes |
| USB Ports | Multiple | Multiple |
| Warranty | 2 years | 2 years |
Dimension comparison
Overview of the Products
When comparing the EF ECOFLOW DELTA 2 Smart Extra Battery and the HOWEASY Portable Power Station, the first notable difference is their price and intended use. The DELTA 2 Smart Extra Battery is priced at $379.00, while the HOWEASY Portable Power Station is significantly cheaper at $109.99—about 71% less. This vast price difference indicates that these products cater to different needs and user demographics.
The DELTA 2 Smart Extra Battery is designed for users seeking a robust solution for extended power needs, such as home backup or outdoor activities. In contrast, the HOWEASY Portable Power Station targets casual users who require a compact and lightweight power bank for smaller devices and occasional use.
Power Capacity Comparison
The EF ECOFLOW DELTA 2 Smart Extra Battery has a substantial capacity of 1024Wh, allowing users to expand their power supply when paired with the DELTA 2 unit, effectively doubling their capacity to 2048Wh. This is ideal for powering larger appliances and devices during emergencies or outdoor activities.
On the other hand, the HOWEASY Portable Power Station offers a much smaller capacity of 98Wh. While this is sufficient for charging smartphones, laptops, and small appliances, it may not meet the needs of users requiring more substantial energy demands. Therefore, the DELTA 2 Smart Extra Battery stands out for its ability to handle higher power requirements.
Charging Options and Speed
The DELTA 2 Smart Extra Battery provides versatile charging options, including AC outlets, car outlets, solar panels, and a Smart Generator, allowing it to charge from 0-80% in just 80 minutes. This rapid charging capability ensures that users can quickly replenish their energy supply, making it suitable for both emergency and recreational use.
In comparison, the HOWEASY Portable Power Station can also be charged rapidly, reaching 80% in approximately one hour via its 65W PD port. Additionally, it supports solar charging and car charging. However, given its lower capacity, the charging speed, while impressive, does not equate to the efficiency provided by the DELTA 2 Smart Extra Battery's diverse charging methods.
Portability and Design
The HOWEASY Portable Power Station is designed with portability in mind, weighing only 2.3 lbs and featuring compact dimensions of 6.6 x 4 x 3 inches. This makes it an excellent choice for camping trips or emergency situations where lightweight gear is essential.
Conversely, the DELTA 2 Smart Extra Battery is significantly larger and heavier, which may limit its portability depending on the user's needs. While it is designed for durability and extensive use, it may not be as convenient for on-the-go scenarios compared to the HOWEASY model.
Versatility in Use
The DELTA 2 Smart Extra Battery can power up to 90% of home appliances with its 1800W output and 15 outlets when paired with the DELTA 2. This versatility makes it suitable for users who need a reliable power source for their homes or outdoor events.
Meanwhile, the HOWEASY Portable Power Station can charge up to seven devices simultaneously, thanks to its multiple output options, including two AC outlets, a 65W PD port, and various USB ports. Although it does not match the DELTA 2’s power output, its multi-device capability makes it versatile for smaller applications.
Safety Features
Safety is paramount in power stations, and both products come equipped with essential safety features. The DELTA 2 Smart Extra Battery includes an onboard LCD screen and an EcoFlow app for monitoring power usage, remaining charge, and output, ensuring users can manage their power consumption effectively.
The HOWEASY Portable Power Station boasts a six-fold BMS (Battery Management System) protection, which actively monitors for overvoltage, overload, overcurrent, overheating, short circuits, and overcharging. This system enhances the unit's reliability, particularly in extreme conditions, making it a safe option for outdoor adventures or emergencies.
Customer Reception
The EF ECOFLOW DELTA 2 Smart Extra Battery holds a sales rank of 11,964, indicating a decent level of popularity among consumers looking for high-capacity power solutions. This suggests that users appreciate its performance and versatility for larger power needs.
In contrast, the HOWEASY Portable Power Station has a sales rank of 16,069, reflecting its appeal to a different customer base prioritizing affordability and compactness. While it may not have the same level of recognition as the DELTA 2, it still serves a specific market well.
Which should you buy?
Choosing between the EF ECOFLOW DELTA 2 Smart Extra Battery and the HOWEASY Portable Power Station ultimately depends on your power needs and budget. If you require a high-capacity solution for extensive use, the DELTA 2 Smart Extra Battery is a worthy investment at $379.00, providing significant power and versatility for home and outdoor applications.
Conversely, if your needs are more modest, focusing on portability and a lower price point, the HOWEASY Portable Power Station at $109.99 is an excellent choice for casual users looking to charge smaller devices while enjoying the convenience of a lightweight design.

