How to make a toy solar four-wheel drive (Figure)

Toy four-wheel drive must rotate in all directions, with high speed and strong maneuverability, like a high-speed tank.

This requires a strong driving force. Typical four-wheel drive vehicles, such as those used in competitions, are mostly driven by lithium batteries, all of which are wirelessly controlled without exception.

Lithium battery has a large discharge current and can provide considerable specific power, which is very important for this kind of car. It seems that lithium batteries are specially designed for this kind of car, or this kind of high-speed and high-power confrontation car is only available with lithium batteries.

Solar cells are completely different.

1 First of all, it needs a considerable solar cell area, which will inevitably increase the weight of the car itself and reduce its performance.

The output of solar cells depends entirely on solar radiation. If the sunlight is not strong enough, the power will be small.

Even in sunny days, due to the placement angle of solar panels, its output is half of the peak power of solar panels.

Therefore, using solar cells as power is not suitable for this four-wheel drive vehicle.

Of course, if it is only for low-speed toy solar cars, it is still possible, but the four-wheel drive is of little significance, and a simple steering wheel is enough.

If you need to calculate power, speed, battery area, etc. You can help.