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  1. W

    Home Batteries / Solar

    It doesn't quite work that way, 100A's is the safe surge current. At 100A's constant over a period of time you would run the risk of the 16mm2 service cable you have which is rated at only 63A's constant, of overheating. You might be lucky and have a 25mm2 cable but your property would have to...
  2. W

    Home Batteries / Solar

    I had already seen that and there is a very large flaw in the way he calculates the savings. He only takes the variable rates of peak and non peak on say an EV tariff. What he should have done is taken not the EV peak rate but the rate a normal non tariff rate would be. For example my...
  3. W

    Home Batteries / Solar

    Yes, so if your EV's are using the max available power into the house, when are you going to charge them ?
  4. W

    Home Batteries / Solar

    Rob, you have to add all your requirements up, I'm guessing but say 60KWh for each car + the 20KWh for the batteries + say 5Kwh just to run the house. So you could in a worse case situation need 145KWh's of energy in 5 Hours, thats some energy pull and way outside of normal single phase 240...
  5. W

    Home Batteries / Solar

    Wouldn't bet on that, are you the battery bank salesman by any chance ? Would you like to quote the amps needed for Rob to charge both his battery banks and EV cars in the 5 hours he has to charge them in.
  6. W

    Home Batteries / Solar

    Not at all, sure we can all go to LED lights and back off with all energy needs but come the winter, how are you going to heat your house ( please no cheating here and say gas as thats being run down, as from 2025 there's no more gas boilers allowed to be sold )? The great energy myth put out by...
  7. W

    Home Batteries / Solar

    Ummm not so sure on that. Going to a so called “green” tariff you pay less for off peak to charge the bank and much much more for the peak, which happens to be for the most number of hours. During the winter months you will need a lot lot lot more peak tariff if you are running heat pumps to...
  8. W

    Talk to me about Mullets

    Why not, the poster saw a conceived design change that suited him, went ahead and made the design how he wanted it, made a carbon fibre repair which is not uncommon in the bicycle world and has used it with success since. His opt out was simply purchasing a new lower stay. Wish there was more...
  9. W

    Talk to me about Mullets

    Yup the braid is doing its job holding the shape, possibly you should really have made a small inner sleeve to hold the shape and locate the join. Heat shrink tape works quite well and the heat sets off the epoxy. Carbon should be tapered at 100:1 if you want to do it precisely, 200:1 if you...
  10. W

    Talk to me about Mullets

    Pretty crude but effective it would seem. Anyone considering this really needs to spend a bit of time researching aircraft building forums as much of this is perhaps a little on the ”crude” side of carbon fibre repair leaving the epoxy taking the strain in ways it perhaps it wasn’t designed to...
  11. W

    Bafang m820

    Why, you have the choice of how much you consume by simply not putting your motor in turbo, thus saving 1kg, best value for money you can get.
  12. W

    Bafang m820

    Not being funny but surely a lot of the existing major brand EBikes with say a Bosch Gen 4 motor and 720Wh batteries are not much more than 20kg if you par down the component specs a tad choosing lightweight components. That extra say 2kgs of the larger suspension and brakes matters little on...
  13. W

    Bafang m820

    Isn’t this discussion of wanting a big battery sort of defeating the whole reason for a lightweight lower powered bike ? Batteries are heavy, more so than any other part of the bike and to fit a larger battery you will need larger down tubes and larger components, meaning more weight. Far...
  14. W

    Bafang m820

    That’s a pretty impressive cell, easily handle our current at 3P and if run at 52volts will give a pretty good 900Wh’s for just over a 3kg battery.
  15. W

    Bafang m820

    Note the weight of this 21700 800Wh battery. Sorry but the 18650 batteries still have the best density and power to weight ratio, the 21700 series have a larger radius and thus leave greater gaps between the cells.
  16. W

    Talk to me about Mullets

    You tend to find those loving their mulleted bikes are from a motorcycle background where wider back tyres and smaller diameters are the norm together with larger diameter but skinnier fronts and longer front travel reign from over 100 years of development. Ask someone coming from a purely...
  17. W

    Garmin Navigation

    Before you buy the Explore do check on the following. On mine which is probably now 2 years old, you cannot scale the map into a small enough scale to see local features and then move the map about to be able look at where you want to head to. It’s really frustrating only being able to pan in...
  18. W

    Bafang M500 and M600 motors

    Caisanho, phew that looks to be a lot of detective and electronics work going on there. On the printed cover, is there a possibility of stepping out that cover to create a larger void inside the motor, even 5 - 10mm maybe enough to get a full Mini VESC setup in there. Good luck with the actual...
  19. W

    M600 vs Brose 2.2

    Sorry I’m at a bit of a loss here understanding your problem. Torque on the pedals is just that torque, regardless of what incline you are on. Is your problem a human problem in that you cannot maintain torque on the peddles at a moderate cadence over a period of time ? Having ridden both the...
  20. W

    M600 vs Brose 2.2

    Interesting, yes totally acknowledge that the M600 lacks in bottom end torque. But if we take into account the early motors had problems stripping the main plastic gear ( the bit that makes it quiet ) then I’m quite happy the engineers backed off the early torque curve to gain reliability. One...
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