The short answer is no, you can't get free solar panels from the government. That being said, there are many incentives put in place by the Federal Government to help homeowners transition to solar energy to power their homes.
The 21700 battery is a cylindrical lithium-ion battery with a diameter of 21mm and a length of 70mm. 7V and a capacity of up to 5,000mAh, making it a powerful and efficient energy source.