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Speaking again from the outside, the proposal is totally bizzare. Any Society has costs in education of their youth for 20 years before they get into the productive economy , society also has to pay for maternity services, early health interventions, vaccine s etc. If a country accepts...

Not sure I agree. The ability to travel 100 / 150 miles with full assistance would be the game changer , particularly if the recharging is very quick or the device carries enough energy to cover the distance. The weight of the bike is of less concern except to a club racing cyclist. I have a...

You should only be ashamed of your own actions. You can be embarrassed by the actions of others. What outsiders , including myself find continually puzzling is why a drastic decision is being made or may be made on what is a flimsy mandate. 52/48 is not a mandate for action. Your parliament is...

My QUOTE comes from a notice I saw on a colleagues desk.. it is intended as wry comment. As an observation from outside the UK, the chopping and changing the UK has made in its qualifications framework s over the years is counterproductive. A management culture is not conducive to scholarship.

The 20bar refers to the charging cycle of forcing the hydrogen into the hydrates The gas is released at a more reasonable 2 bar. I assume that the bottle must withstand the 20bar. But lightweight aluminium bottles eg those used for refilling car air conditioner s would be suitable H

Well if you think. Education is expensive try ignorance...

Thanks I am becoming inured to people complaining about my spelzing

Really it depends on what you want to do....... All bikes , ebikes as well as ordinary bikes will demand some energy from you .. if only pushing off from the pavement. Ebikes make it easier to take some excercise because of the immediate wow factor. You travel faster, and exert less effort...

Ok the first objection can be countered. These hydrogen electric hybrids have a hydrogen cylinder, connected to a fuel cell which produces the electricity, probably has some voltage changing circuits and then a 60whr liion battery. I presume that this is needed to 1. Provide current boost buffer...

Lovely concept and engineering ... But what a price!

Scott If I were teaching a class on how not to progress a complaint, I could use your emails as a case study. At every stage in the process you chose the wrong option. 1. In selecting the bikes initially you were unaware they would not be legal in UK 2. Whether the failure of the brake...

Lycra clad club cyclists on their 3 HR weekend cycles overtake me slowly on my legal 25km HR , Dutch style. Bike with large anorak open and fluttering in the breeze, I can continue this for two hours with only slightly raised heartbeat. Both of us are happy in our own ways., Mine being less...

I don't see that there is any conflict with the current directive which states an auxiliary electric power of 250w. There is no mention of how the electric energy is deposited in the motor. There is no limitations on the size of electrical batteries ...Within reason. I. had thought about the...

Dave , you confused? I think not ... But a very useful graphic

The post is useful back up information. One needs to be careful about terminology. .. a cell is a single device. A battery Is the collective term for the entire set of cells. I call the group of cells connected in parallel a tier, others may use different terms. The number of tiers in series...

In a 10s5p arrangement you should have 5 cells in each tier sharing a BMS lead and 9 BMS voltage sampling leads excluding the 0v ground connection. The peak charging voltage would be 42v

All the cells in a single tier are electrically connected in parallel, so they will all be at the same voltage the . There are multiple connections between these cells so the intercellular resistance is very low, so they are all at the same voltage level. The lead samples the voltage present at...

Yes I was working on the assumption that the battery pack would have a BMS battery management system fitted. If Renax is unfamiliar with the concept ... Basically it is an electric connection from each tier in a multiple cell battery and it ensures that no cell experiences a voltage greater...