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Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer

Autowit SuperCap 2 - Ultracapacitor jump starter 02

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The body is fairly large compared to my old Li-ion battery pack.

The white paper is A4 size.

Despite the body size, it's very light and can be handled easily.









The specification sheet on the box and the spec label on the actual unit.

Huge peak current of 800A and temperature spec of -40degC upto 70degC which is the advantage over the Li-ion battery pack.







The usual marketing method of visually showing off the benefits of the product.

It states that it can survive at least 10 years although I would reserve my view on this based on the ultracap being used for emergency power supply in Japan for earthquake hit area.








The terminals - From Left to Right;

The jump start button
Once charged and ready, hit this switch and it will start the 10sec count down tone.

This will allow you to get inside the car and prepare for the jump starting process.

Once 10sec times up, the tone will turn into continuous warning beep that the discharge sequence started.

If you had enough battery power left, you could disarm the immobiliser during the 10sec countdown period but if not,
the continuous beep is when you disarm the immobiliser and start cranking the engine.

Remember, as soon as the ultracap starts discharging, the voltage also starts dropping proportionally to the current consumption because
not only the energy is being used for cranking the engine but also it will be consumed for charging your flat car battery.


The micro-USB input port
Rated at 5V/2A

Input only so can't be used for charging other devices.

You can use mobile battery, another jump starter pack, etc as the charging power source.

Can take upto 30min using this charging method depending on the initial status.


The DC input port (cigarette lighter socket)
Rated at 6.5A.

Input only so can't be used for charging other devices.

Becomes handy if you have access to another car on site or while on the way for rescue call out.

Will charge up the ultracap within a few minutes if the battery on donor car is healthy or with the donor car engine running.


The battery clamp input/output port

Will be used for charging the ultracap by sucking up the remaining juice from your flat battery or from another healthy battery, etc.

The charging time depends on the state of your flat battery and again, if drained too far,
it may not be enough to charge up the ultracap that it may trigger the Low battery warning and not being able to jump start the car.

With healthy battery, you can charge this ultracap in less than a few minutes.

And of course, acting as the output port for the jump start purpose.








Updated 06-06-2021 at 11:57 AM by Kaz-kzukNA1 (extra info)

Categories
Personal View/Self Talk , Electronics

Comments

  1. Heineken's Avatar
    Thanks for the detailed report.
    If understood correctly, it would allow for the interesting use case of charging it from a vehicle with an almost dead battery and then jump-starting that same car with it.
  2. Kaz-kzukNA1's Avatar
    Yes, it can be done as long as there is enough juice left in your flat battery.
    As in my next post, I wanted to take video with completely flat battery (like well below 8V) showing when this device failed to even start the jump starting process.

    If your battery went flat but the starter still makes really slow cranking sound of like once per second, there should be enough juice left in the car battery.

    This device would likely be able to jump start your car by sucking out the remaining power to charge the ultracap, ramp up the voltage by the internal circuit design and discharge massive energy in one go while attempting the cranking.

    On the other hand, if the battery was completely dead, you won't be able to get enough power to charge up the ultracap to the required level for jump starting process.

    It would simply display the low voltage warning and not even allows you to start the process.

    Unless you are in the middle of nowhere, you could use other methods to charge this device and attempt the jump starting process even on the completely dead car battery.

    So, as in the 1st post, there are pros and cons between the battery pack and the ultracap device.


    Kaz

  3. Heineken's Avatar
    Thanks for the explanation - an interesting device for sure.