Ask HN: What are you working on (August 2024)?

Hey guys! We're engineers/designers from France, and we've built the Ultimate DIY Battery that you can repair and refill!

It works with 90% of the bikes/motor brands on the market, so I assumed that some people here might be interested, if they got a non-functional batteries but they still want to use their e-bike?

We believe that everybody should have control about stuff they own, and we should fight against planned obsolescence!

Here are a few videos about our founder on the battery itself, why we built it, and how to assemble it:

- What is the Gouach Battery: https://www.youtube.com/watch?v=NsuW1NPkvNk

- Presentation of the pack: https://www.youtube.com/watch?v=mLoCihE0eIA

- Presentation of the fireproof and waterproof casing: https://www.youtube.com/watch?v=EDJpt7RDbRM

Here are the juicy bits: https://docs.gouach.com

We'd love some feedback from the e-bike DIY builder community

Oh, and it's launching as a Kickstarter in September and there is an offer for early-backers here https://get.gouach.com/1 for a 25% discount on the battery!

You can follow us on Instagram https://www.instagram.com/gouach.batteries to get the latest news!

Since you have the ESP32 - can you emulate the Apple Airtag on it please.

I have a $7,000 Orbea E-bike and I have an Airtag hidden in it. Its a great feature.

Not sure if I could redo the Orbead Battery this way because its internal to the frame - but it does have an extended battery pack option - perhaps this could be wired to use that connector as your interface allows for any ebike it seems?

The post recently on HN about the flipper zero being able to emulate the airtag is pretty nifty, and you could use these guys effort:

https://news.ycombinator.com/item?id=41287031

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I LOVE this project.

I want.

Actually, Can I ask that you add a LORA transceiver network in the build since you have the ESP32 (maybe update it to the ESP3250?) :-)

https://www.youtube.com/watch?v=40llxjrIG3w

Imagine being able to lora talk back from your bike to the trailhead, or your campsite.

And do you have a better version of Shimano's E-Tube iOs crapware?

EDIT: Since you have THIS: https://www.youtube.com/watch?v=EQHZFRHiUdg

The Goauche BMS Tesrt Bench needs its own video/HN post - and this is exactly what would be great info to get via a LORA messaging for all the telemetries from the pack?

WOW:

https://www.youtube.com/watch?v=9sEuBDA_xb8

I want to open a Goache Plant in California. Seriously.