Recent content by lnunell

The main focus for us is a reduction in price of the charging hardware but maintaining the same power output and quality. Our system is designed to be paralleled with hundreds of units. so it is well placed to deal with higher capacity battery packs. Leigh

Hi All, A progress report on the battery systems including the BMS and the Charger. We have a prototype system running with all of the metrics in the green, It is currently in a much larger box to test thermals but the system is running comfortably at 600watts output, the initial aim is to have...

Our system logs charge data in the battery itself for diagnostics.

So this is unfortunately not for you my friend, if you are looking for a battery that is 1/2 the weight and twice the distance you are looking for a battery that is roughly 4x what is capable today, this is another decade away.

We can configure our system to do 36v packs, the reason why we chose 48v is it is better efficiencies all around compared with 36v. A 360w pack at 36v will perform worse than a 360w 48v pack

The test houses we have spoken to in the UK deal with 48v nominal, and as long as it is under 60v during peak charging. Not sure where these other testing houses are but they are mistaken.

Yes, it is more to do with the initial configuration at this point.

Here is another question: Bottle rack mount or pannier mount, which is the most popular? We are designing for bottle mount but have scope to have two versions if demand is there.

All of this is in early prototype stage so we have not certified it yet (we are focusing on the charger) but yes it will be EN 15194 when we finish.

Yep completely agree that you need docking stations for hire schemes and that is what we are focusing on for our own hire scheme. The only reason I can see why they may stop talking to you once you say that is they probably see limited number of sales for more effort. Silly really.

We have not really focused on size and implementation at the moment, we are currently working about 9cm x 9cm x 30cm size of the chargers, so they can be either separate or built into a docking station. If they are in docking stations they can also be easily paralleled up for more power output...

We know the answer so don't worry about that :-)

:)

We have been working with systems up to 60v for some time now, the CE and UL standard for high voltage is >60v DC so as long as you work below this during charging then you are fine. This applies the same for the EN 15194 standards as far as we have experienced. Regarding the higher capacity...

Update! I wanted to give you all an update on our progress and what we are expecting to achieve in the next 12 months before launch. We have sized up 3 battery packs for a 48 volt system, a 132wh pack (for scooters), a 264wh pack for Ebikes and a 396wh pack for extended range. One of the...