My first solar cell phone charger described in the previous blog posts (1, 2) looked like it worked, but it didn't charge my phone's battery. After talking to youtubers who make solar chargers, I came to a conclusion that my first charger doesn't have a strong enough current. So, I decided to make a new solar cell phone charger considering advice from youtubers, and this post will show and tell what exactly I did and show the video that proves that it actually worked this time.
