Supercaps powering e-bike

[GeorgeF]

Quote:
Our top-quality e-bikes have an ultra-short charging time of only 30 minutes and that is the the fastest charging time of all e-bikes currently on the market. You can literally wait for it. The battery has a range of 40 km on average and is then fully charged again within half an hour. Did you forget to charge the battery last night and do you have to go to work? No problem. While you prepare to leave with a fresh shower and a hearty breakfast, the battery of your Ostrichoo e-bike is fully charged. When you are ready to leave, your e-bike is ready for a hassle-free ride to your final destination for that day. The best super-capacitors for super-fast charging

Ostrichoo e-bikes use super-capacitors, which clearly have advantages over a normal lithium battery. The most important assets: Super-fast charging time of 30 minutes
Double the lifespan compared to lithium batteries
Excellent resistance against cold and heat
Fire hazard is limited to a minimum
Environmental-friendly and sustainable

https://ostrichoo.nl/en/p/why-choose-us

This company claims the above. Do you think it is possible??

[Ampster]

I am always suspicious when there is no data about battery size or motor size and claims about a motor many times more efficient.

[GeorgeF]

Here r some details from their website:

[bob-n]

Sometimes they call it a supercapacitor and sometimes they call it a battery. I believe that this bike uses both and they gloss over ithat detail in the ad. I can't comment on this bike first hand, but can say that many products successfully increase battery life by using both a LiIon battery and a supercapacitor. So that claim is probably valid, although perhaps overhyped.

On their website, they make other claims that seem to stretch the truth "many times more efficient" and "immediate emergency stop". But that's marketing. Everyone does it. Go to any bike website and they will claim that you willl feel 20 years younger on their bike and will blow away your competitor at the next race.

[Ampster]

The motor is 250 Watts and the battery is 166 Whrs. In order to travel 40 km (25 mile) you would have to ride at a snail's pace and consume only 6 Watts per mile. That is a lot of peddling. LOL

[GeorgeF]

Have emailed them and they definitely confirmed that they use supercaps only. They intend to develop a hybrid battery in the future.

[jflorey2]

This company claims the above. Do you think it is possible??

Absolutely. And you would have a range of a few miles, with the bike slowing down the whole time as the capacitor discharged.

The value of super caps is you can charge them instantly; as fast as they can accept power. For example, an ebike that you could recharge in 30 seconds at a red light would be easy if you could get the supply/current handling details worked out. (We're talking 800 amps to do that for a 7 amp hour battery.) Then range wouldn't matter as much. But 30 MINUTES? That's a joke. Even if you did nothing more than use a few decent Meanwell supplies to charge the capacitors, that's 14 minutes from a regular outlet.

And size will always be a problem. A 130 farad, 56 volt ultracap from Maxwell is the size of three car batteries and weighs 40 pounds. It's equivalent to a 1 amp hour, 50 volt battery.

[bcroe]

A big problem with capacitors as energy sources, is the voltage keeps dropping
drastically as you try to recover the energy. Batteries not so much. Bruce Roe