12V / 100A supercapacitor battery

A supercapacitor (aka an ionistor) is almost the same capacitor, only of high capacity, comparable to a battery. I made a 12 V battery from such ionistors, which can be used in various devices. And it will last longer in certain modes compared to batteries of any type, and that's why the supercapacitor wins here:

• - not afraid of a full discharge "to zero";
• - 100, and maybe 1000 times more withstand cycles "charge / discharge";
• - not afraid of critical current overloads.

And that's not all. I will continue after assembling the battery.

Will need

• Eight supercapacitors (ionistors) 2.7 V 500 F.
• Copper wire from 2 square meters. mm
• Two nuts with bolts.

Tool: soldering iron, tweezers, wire cutters.
Consumables: solder, flux.

Making batteries from ionistors

We will make a battery of 8 ionistors connected in counter-parallel. Namely, there will be 4 pairs of two parallel-connected capacitors connected in series.
The lacquered copper wire must be straightened and cleaned of varnish. You can do this with a clerical knife.
Bend the wire into the connecting elements.
You need to make three squares and two poles.
To the poles, as on a real battery, solder the nuts for connection.
We make corners of the squares.
We assemble the battery, solder the connectors to the ionistors, without confusing polarity.
First we collect 4 groups.
And then solder the poles.
We charge with a current of 5 Amps.
After five minutes, the battery is fully charged.
Check the lamp.
We close the wire - it glowed to red.
We connect the electric motor.

Where to apply

And you can use such a battery where there are high and short-term current loads. Ideal example: storage capacitor for a subwoofer in a car.
Also, a battery is useful where there are frequent charge and discharge cycles: in the form of a battery for storing energy from solar panels, and its full return to the lights at night.
These are just two use cases, but there are many more.
They even stand on Ali Express (link) is relatively not expensive, given the enormous duration of their service when used for their intended purpose.