NRG Stem that keeps your devices powered up

Our need for power is ever increasing as we demand more from our leisure, work or sporting activities. Bike computers and phones or similar devices are great for tracking and guiding us, but with so much strain on batteries it's not surprising they don't last all day. From the business user to the trail user, it can be irritating to lose power on your device. I decided to create a bike stem with built in power to utilise the cavity within the stem. Knowing you have a power lifeline is great for those long rides and power intensive apps.
We would love your feedback on our idea which currently is on Kickstarter. Thanks in advance for your time
https://kck.st/2TlWdks
We would love your feedback on our idea which currently is on Kickstarter. Thanks in advance for your time
https://kck.st/2TlWdks
0
Posts
Do you have options for different stem lengths? my mountain bike stem is very short and I suspect the handling would go awry if I stuck a long stem on it.
You'd need to go from about 0-10 deg rise, 80-120mm length and 'right way up' agnostic to really make this attractive to most people.
Cyclists have the stems rightway up and upside down and no way is 105mm sufficient for everyone on MTB and road. Even on my 2 bikes the stem lengths are different. both 8 degrees I think, upside down according to your design.
Agree 2m is way too short, although that is the length of di2 charging cable. You can always use an extension lead.
You could power it from a powerbank.
Also, 3500mah is a pretty small amount of charge to hold by modern standards, and isn't enough to fully charge most current high end phones.
Then there is the fact that there are already on the market a lot of power banks that are built into front lights (again, at a fraction of the price...), and I just can't see a market for this product.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools
https://www.bikeradar.com/forums/viewtopic.php?f=40116&t=13091455&hilit=Nrg
The delivery is something to work on. I agree with others who mentioned an ordinary power-bank attached to the frame does the job for now. Also at the moment size matters when it comes to the energy capacity (mAh) and also the speed of discharge / re-charge?
Would vibration of road surface have a long-term negative effect on the battery or its connection?
What would be nice is the detach-ability and portability of the storage component (i.e. just like the detachable lights where you can easily take them off the bike and charge it using the office PC outlet).
Something like a powerbank (a size of polo mint tube or equivalent) that can be attached via bracket to the saddle rail, top tube or even under the stem and easily detach-able to recharge would be much more universal, versatile and doesn't require modifying your bike component? Or does such a thing already exist?
I often run a USB battery pack either velcro strapped to stem or in a top tube bag, works fine and is removable for those times when I don't need it.
For 99% of my rides I don't need the additional power, only when doing touring or rides when using mapping in excess of 10 hours. Not as elegant a solution as the NRG Stem, but its reliable and convenient.
https://www.alpkit.com/products/stem-cell
These are both very good points. Plus the need for power is quite niche, the specific angle makes it more niche.
On that basis, I'm out.
https://thewirecutter.com/reviews/best- ... ery-packs/
For example, if doing a 14 hour ride following a route on the garmin, I need to be able to see it - so the powerbank stays in the stemcell, it then powers / charges the garmin as I ride.