The short version

Key points

  • Direct DC power bypasses the Starlink AC power brick and was around 30% more efficient in the reviewer's testing.
  • The 648Wh version ran a Starlink Gen 3 system for close to 10 hours in testing.
  • The unit supports Starlink Gen 3, Starlink Mini and older generations with the included adapters.
  • A LAN port allows users to connect a different router and power it from the battery's DC output.
  • The battery enclosure can be opened and the batteries replaced without replacing the entire unit, according to the review.

What the EL8 PRO is designed to do

The XTAR-LINK EL8 PRO is a portable battery aimed at people who want to use Starlink while camping, staying in a cabin with intermittent power or operating off-grid. The reviewed model has a 648Wh capacity, while a smaller version with a capacity of around 300Wh is also available.

Its main difference from a conventional portable power station is how it supplies power. Rather than running Starlink from an AC inverter and then through the Starlink power brick, the EL8 PRO can provide a direct DC connection using the included adapters. This avoids the AC-to-DC conversion stage.

Runtime and efficiency

With a Starlink Gen 3 system, including the router, power brick and antenna array, the reviewer's testing recorded power consumption of approximately 47W. The EL8 PRO delivered close to 10 hours of runtime from its 648Wh battery.

The product website states a 12-hour runtime, but the testing result was lower. Using a conventional AC power station and the Starlink brick was estimated to provide around 30% less runtime. The direct DC approach also removes the need to carry the separate Starlink AC power brick.

For a Starlink Mini, the review estimates around 20 hours of operation. Actual runtime will depend on the connected equipment and how it is used.

Connections and compatibility

The package includes an Ethernet Power over Ethernet adapter that connects the battery to the Starlink router and antenna in the usual arrangement, while supplying power directly from the battery. There is also a 5521 barrel jack output and a LAN port.

The LAN port means users are not restricted to the standard Starlink router. A different router can be connected and powered through the DC output, potentially reducing the overall power draw if that router is more efficient.

Adapters are included for the Starlink Mini and older Starlink generations. The package also contains a barrel-jack coupler to extend the relatively short connection, along with the AC charger for charging the battery.

Serviceability, charging and construction

Four screws on the rear allow the enclosure to be opened. The review states that the batteries can be replaced while continuing to use the enclosure, rather than replacing the complete power station. This is different from many sealed battery packs.

The EL8 PRO can also be charged from solar panels, provided the correct adapter to the DC barrel jack is used. Solar charging can take place while the battery is powering Starlink, allowing daytime solar generation to offset the system's consumption.

The enclosure is made from thick plastic and is described as dust resistant. However, the ports do not have covers. The reviewer's advice is to keep the unit clean and avoid exposing it to heavy water or submersion.

Price and limitations

The reviewed 648Wh model costs around 450 USD, making it more expensive than some general-purpose battery options. Its value comes from the direct DC Starlink connection, included adapters, support for different Starlink generations and user-serviceable battery design.

The exterior design and plastic construction are not presented as premium. The unit is intended as a practical, purpose-built solution rather than a polished general-purpose power station.

TechManPat’s conclusion

I think the EL8 PRO is a practical off-grid solution for Starlink because it combines direct DC power, useful runtime, broad adapter support and a replaceable battery enclosure. I also think its basic design and price are worth considering, but my testing found that runtime was closer to 10 hours for Starlink Gen 3 than the 12 hours stated on the website.
Source note

This knowledge-centre summary is based on the linked TechManPat video and reflects the information available when it was published. Check current pricing, availability and policies before acting.