:) Hey everyone,
We recently developed a DIY expansion cable for EcoFlow Delta 2/3 — and honestly, it blew up way faster than we expected (sold out pretty quickly).
Now we’re getting a ton of requests like:
👉 “Can you make this for other EcoFlow models?”
👉 "When are you supporting Bluetti/Anker/Pecron?"
We do not want to simply sit in a laboratory and make blind guesses about your needs; instead, we require genuine feedback from the community.
We don’t have access to every EcoFlow model (especially different regional versions), and we’ve already noticed some important differences:
Connector types vary
Pin layouts aren’t always the same
Some versions may have different neutral line placement
Port orientation can change between models
So instead of guessing…
👉 We figured: why not build this with the DIY community?
If you own any portable power stations—whether from EcoFlow or another brand—it would be extremely helpful to us if you could share the following information:
Photos of your expansion battery port
Your exact model + region (US / EU / etc.)
Any pinout / polarity / voltage measurements (if you’ve tested)
Notes on wiring differences (i
Ideas for what you’d want in an expansion cable
Even if you’re not super technical — photos alone are a huge help.
We’re working toward:
Safe DIY expansion cable solutions
Better compatibility across EcoFlow models
Higher power handling (within reason)
Cleaner plug-and-play setups
To make it worth your time:
💰 We’ll randomly pick 10 people who participate
→ Each gets a $50 store credit on our site
And if your input directly helps shape the final design…
We’ll definitely take extra care of you 👍
If you’re down to help, here’s the quick survey (takes a few minutes):
👉 Wattcycle Next-Gen Expansion Line Survey
We know a lot of people here are already experimenting with DIY battery setups, so this felt like the right place to ask.
Appreciate any input — even small details help a lot.
Let’s build something solid together ⚡
