Uploaded October 2025 | Updated September 2026, 1 day ago
Fair retest time.
In my original head‑to‑head between the Anker SOLIX 300 DC and EcoFlow Trail 300 DC, the EcoFlow threw “overload” errors and wouldn’t dual‑charge, so I swapped it for a replacement and rebuilt the test bench to give it a truly fair shot.
In this take two, both units are heavily discharged, I’m using multiple 140W USB‑C GaN chargers, a 100W GaN charger, and a programmable “solar” bench supply to test low/high MPPT voltage ranges and real‑world max charge rates.
Key findings:
EcoFlow overloads again with a known‑good 100W GaN charger (Anker handles it fine).
EcoFlow’s USB+USB will not combine power; caps around ~110–116W from a single USB‑C port.
EcoFlow’s USB+Solar DOES combine and settles around ~260W.
Anker accepts higher power per USB‑C port (single ~130W) and truly combines USB+USB up to ~260W.
Anker also combines USB+Solar to ~260W (practical ceiling).
EcoFlow’s MPPT is efficient across its 10–30V range, but USB‑C charging underperforms.
Now based on new testing this looks less like a defective unit and more like a design limitation.
If you watched the original review, this update gives the EcoFlow a fair retest with better gear and clearer results. Draw your own conclusions—but the numbers speak loudly.
Chapters
0:00 Intro & why a retest
0:54 Test plan: chargers, cables, PSU, discharge levels
3:26 100W USB‑C test (Anker vs EcoFlow overload)
6:37 140W single‑port USB‑C results
8:10 Dual USB on Anker (true ~260W)
8:41 Dual USB on EcoFlow (no combine)
12:09 Anker solar input: low vs high voltage, combining with USB
15:40 EcoFlow solar input: 10–30V range, MPPT behavior
17:35 EcoFlow USB+Solar combine (~245W)
17:46 Final takeaways & buyer guidance
Gear/Specs Mentioned (Affiliate Links)
Anker SOLIX 300 DC - amzn.to/4mLIfly
EcoFlow Trail 300 DC - amzn.to/432DZqz
Anker 140W Charger - amzn.to/3IBJCoR
Programmable DC supply for “solar” (MPPT range testing) - amzn.to/42jbmoT
If this helped, please like, subscribe, and comment your results with these units.
Got a charger that combines better on EcoFlow? I want to test it.
#Anker #EcoFlow #USBPD #PowerStation #Solar
Fair retest time.
In my original head‑to‑head between the Anker SOLIX 300 DC and EcoFlow Trail 300 DC, the EcoFlow threw “overload” errors and wouldn’t dual‑charge, so I swapped it for a replacement and rebuilt the test bench to give it a truly fair shot.
In this take two, both units are heavily discharged, I’m using multiple 140W USB‑C GaN chargers, a 100W GaN charger, and a programmable “solar” bench supply to test low/high MPPT voltage ranges and real‑world max charge rates.
Key findings:
EcoFlow overloads again with a known‑good 100W GaN charger (Anker handles it fine).
EcoFlow’s USB+USB will not combine power; caps around ~110–116W from a single USB‑C port.
EcoFlow’s USB+Solar DOES combine and settles around ~260W.
Anker accepts higher power per USB‑C port (single ~130W) and truly combines USB+USB up to ~260W.
Anker also combines USB+Solar to ~260W (practical ceiling).
EcoFlow’s MPPT is efficient across its 10–30V range, but USB‑C charging underperforms.
Now based on new testing this looks less like a defective unit and more like a design limitation.
If you watched the original review, this update gives the EcoFlow a fair retest with better gear and clearer results. Draw your own conclusions—but the numbers speak loudly.
Chapters
0:00 Intro & why a retest
0:54 Test plan: chargers, cables, PSU, discharge levels
3:26 100W USB‑C test (Anker vs EcoFlow overload)
6:37 140W single‑port USB‑C results
8:10 Dual USB on Anker (true ~260W)
8:41 Dual USB on EcoFlow (no combine)
12:09 Anker solar input: low vs high voltage, combining with USB
15:40 EcoFlow solar input: 10–30V range, MPPT behavior
17:35 EcoFlow USB+Solar combine (~245W)
17:46 Final takeaways & buyer guidance
Gear/Specs Mentioned (Affiliate Links)
Anker SOLIX 300 DC - amzn.to/4mLIfly
EcoFlow Trail 300 DC - amzn.to/432DZqz
Anker 140W Charger - amzn.to/3IBJCoR
Programmable DC supply for “solar” (MPPT range testing) - amzn.to/42jbmoT
If this helped, please like, subscribe, and comment your results with these units.
Got a charger that combines better on EcoFlow? I want to test it.
#Anker #EcoFlow #USBPD #PowerStation #Solar
