Electric bicycles

The Segway eMoped C80 is the brand's first smart e-bike with amazing features. He has already raised $ 287 in crowdfunding

comments (1)
  1. Pythro de writes:

    Ah (generally sucin amperes and units of time) NO, I repeat NO unit of capacity, but after changing to small SI basic units we suddenly find out that we assemble the unit el. charge !!! There rules the coulomb. Yes we see well !!!

    1 Ah = 3600 C (coulombs) !!!

    Dear and nice unit el. capacity is farad !!! A related to el. tension, not sharp. Yes, among the common people for years we see the verbal wording "capacity" of the battery or accumulator and think of ENERGY CONTENT (based on weight or volume). That is, HOW MANY ENERGY IS THERE? And the unit of energy (again after the conversion into small SI basic units) is e.g. Wh ci kWh.

    1 Wh = 3600 J (joules) !!!

    Indicating the energy content of the battery purely by the data in Ah is absolutely incorrect and totally ill, because Ah is NOT a unit of energy. For this we have error V (volt). When we count the volt, we get a unit of energy. E.g. 20 Ah at 24 V is something other than 20 Ah at 400 V. The first hides an energy of 480 Wh, the second is 8000 Wh. Unfortunately, with ordinary batteries, the masses have been massaged with mAh (milliamper hours) for many years only because some battery tips have "their" non-minimal voltage. e.g. rechargeable AA / AAA monoclans 1,2V; non-rechargeable 1,5V; li-ion monoclanky (18650/21700….) or mobile batteries 3,6 / 3,7V and USB after the old 5V. However, without knowledge of voltage, resp. mixing and comparing values ​​in mAh / Ah at different voltages leads to those naive mistakes of the power bank type (5V) vs. mobile (3,6V).

    Indication of the energy content of the battery in e-cars is in Wh / kWh which is great: this is the energy content = how much energy is hidden in the battery, because no one knows whether the e-car uses 300V-350V-400V-500V or how much volt system to the energy content from the counterproductive data in Ah could be calculated.

    However, the power bank's 10 mAh is theoretically equivalent to about 000 mobile mAh at total zero losses in high-voltage conversions (well, because no one cares about mobile phones and power banks count their mAh at different voltages), actually due to losses at conversion of about 7200 mobile mAh. mAh… they are just 6600/2… and everyone then wonders like an idiot.

    On the other hand, if we see 1152 Wh and 24 Ah for the battery, we can immediately calculate the battery voltage of 48 V by primitive division. Wh. What combination of voltage and current is already secondary, whether at 1152Ah.24V or 48Ah.36V or 32Ah.16V… it really doesn't matter.
    Even with Tesla with its amazing 100 kWh battery and amazing range of 500 km, no one cares if it's like 250Ah.400V or 200Ah.500V or 400Ah.250V or 125Ah.800V… A combination of currents and voltages that achieve the energy content of 100 kWh Tesla battery does not really (probably almost) appear anywhere. This does not apply to li-lion monolclanky, where I write everything nicely, but unnecessarily - since the nominal tension is clear (conventionally read and known), e.g. https://bit.ly/3nc5nMh: 3,5 Ah at a nominal 3,6V can give nothing but an energy content of 12,6 Wh.

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