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    Brexit, for once some facts.

    ...... And you think hope that the terms would be enticing to all other EU member states. It only requires one of them (us), to disagree. Anyway changes to EU conditions can only (usually) take place following referendums in a number of the member states
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    Brexit, for once some facts.

    .... If only but option 3 is unavailable, read article 50.
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    This is the future....

    An Another alternative being considered is to use cyrogenic air .. liquiified air held in an insulated bottle , at normal pressure is allowed to boil off and generate pressure in such an air engine. The energy density is equivalent to Li ion battery .There is no great safety hazard as the...
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    Sherlock - Anti-theft gps tracker with gsm for bikes

    .... Kind of defeats the purpose of having transport especially for commuting if it has to be watched all the time....
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    Sherlock - Anti-theft gps tracker with gsm for bikes

    I think that this is one of the added value items that the premium brands could include to justify their higher prices. Along with a register of the owners it would destroy a market for second hand stolen quality bikes. A GSM , GPS module is now very low in cost basically inside many of the...
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    How fast do you go on legal ebikes that are not derestricted?

    Not derestricted . ... What a lot of conditions would "restricted" not suffice?
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    Brexit, for once some facts.

    I enjoyed your analogy... But back to your main point Will this mythical MP demand this before or after brexit is triggered? .... Why has nobody picked up on the fact that the Westminster parliment loses control of this option post the letter being sent to EU. UK will then be relying on the...
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    Hi All from an Early Adopter - paying the price

    .... Car tyres cost me about 150 euro each , bike tyres 15 to 25 . And there are 4 not 2 Car brake pads fitted are much dearer than the 10 euro. For supermarket bike pads.
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    Hi All from an Early Adopter - paying the price

    Cost of ownership equilavent ??? Look a new car costs 15 to 20k, needs to be taxed and insured each year and tyres replaced ever three years and the battery after say 5 years . Servicing is another expense. There are toll costs and parking costs to be considered and then of course the actual...
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    NuVinci 360 gearing

    All life is a compromise . The hubgear you admire is apparently very reliable, and requires minimal maintenance. Against that it is extremely heavy, extremely expensive, and relatively speaking extremely inefficient in comparison with a derailleur. The belt drive you also admire is clean, non...
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    bring dead battery back to life

    I agree with you . In a way the SLA battery market distorts the way we look at this. The car and leisure markets are very long established and there are a limited range of batteries available. 6v 12v and 24 V , different capacities and two choices deep discharge or high current, even within...
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    bring dead battery back to life

    It actually doesn' go down that much the cost of the battery packs is the cost of the cells. There are currently very few actual manufacturers of cells. It is dominated by the few Samsung , LG , Sony Panasonic and probably Varta. These companies sell their product to mainly OEM s who assemble...
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    bring dead battery back to life

    ... They do they have and it is the 18650 Li ion cell. The problem is that if they were to be packaged into holders with spring clips and plastic , the overall battery pack would be very much larger and a lot of the power lost in internal resistance between cells. Current practice is to take...
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    bring dead battery back to life

    ....... By older cells I mean those in the lamps not those in the electric bike, which will in SLA terms be modern.
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    24V to 36V ?

    D8veh will probably disagree with me but this is my tupence worth. Cleaning the battery contacts is a good idea. And perhaps coating them with petroleum jelly afterwards will not hurt. If you put a 36v battery in then either it will blow the electronics in the controller or not , that will...
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    bring dead battery back to life

    There are a number of technical reasons why those older cells might recover better than more recent designs. Originally lead acid cells used sheets of off pure lead.,.,... Similarly to the stuff used in roofing. More recent cells use sintered pellets held together in a wire frame. The Advantage...
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    bring dead battery back to life

    You have nothing to lose but your time. Think of it as a vintage restoration project. Fill the cells back up to the over plates with deionised water ... Not Tap water charge and discharge them multiple times and you will eventually get a response. You may need to break open a covering to get...
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    The battery is built.... Now for

    Am I reading you correctly? Say one battery is at 41 V and the other at 40 then there is 1 volt difference . If both are paralled current will flow between them to attempt to equalise. The resistance of these battery packs is in the milliohm range, so this current could be in the 100s of amp...
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    Brexit, for once some facts.

    I don't think that he meant clinically insane , we use the term mad more loosely. Perhaps the term "brave " might be more appropriate, in the same context as department secretary used it in the 1980 satire Yes Minister........ Highly unwise.
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    Brexit, for once some facts.

    We agree on this also. What I find bizzare is that the Labour party whome would might have expected to be an opposition aren't.