Comment by abdullahkhalids 4 days ago
An ebike is very weight sensitive. How much extra weight does this innovation lead to?
I would rather have the whole battery be replacable. And when you want to replace, you trade-in your old one for a discount on the new one.
To a degree yes, however I have an ebike and the bosch battery with a it has a 500W battery which is about equiv (if my math is right) to a 28 Ah ryobi drill battery. Those don't exist btw, but if i wanted one and bought 7 4Ah batteries to get the same effect they would cost more than the single ebike battery.
As a single item they are pretty well priced for the power they offer.
I think those batteries have their own BMSs, plus casing etc, that adds to the cost. The story as I can understand it is about being able to swap out individual cells which won't have those overheads.
(Gouach co-founder here) Thanks for your question! You can see the exact specs on the Gouach website here https://gouach.com/products/infinite-battery-complete-kit?va...
The battery itself is 3.3kg, so quite comparable to other models, keep in mind it comes with a sturdy aluminum casing.
What we mean by "replacing" is that you can change the cells of the battery yourself (or by asking at your local bike shop), so you don't need to trade-in the whole battery! This makes you gain time and a lot of money!
Pedal powered bikes are very weight sensitive. The average e-bike (at least one that would use a fat battery pack like the on pictured in the article), are less weight sensitive.
The RadKick 7 (which RadPower calls a "lightweight bike" weighs 55 lbs.
Racing bikes like the $10K Trek Domaine Carbon weighs less than 30 lbs, but has a much slimmer (and lower capacity) battery pack than what Gouach seems to be targeting.
This page says the Domane+ (the one with battery assist) weighs closer to 40lb:https://www.trekbikes.com/ca/en_CA/domane-plus-faq/
I don't like their product naming -- they use the same name for different product lines.
The Domane I was talking about is the SLR carbon series, it ranges from 28.3 lbs for the SLR6 ($9K) to 26.1 lbs for the SLR 9 ($17K)
The Domane+ ALR is the Aluminum framed series and is heavier, but their specs page says it's 31.73 lbs for the ALR 5 (ML frame size).
https://www.trekbikes.com/ca/en_CA/bikes/electric-bikes/elec...
https://www.trekbikes.com/ca/en_CA/bikes/road-bikes/performa...
> An ebike is very weight sensitive.
E-bikes tend to be quite heavy, and many of them have designs that are very much not optimized for weight.
> I would rather have the whole battery be replacable.
They are. And the replacements are single-source and are very expensive.