How does solar power bank work?
Solar-Charged Power Bank. They have photovoltaic panels
which can trickle-charge the internal battery when placed in sunlight. Solar
charging isn't fast, so they can usually charge via cable as well. ... We most
often see Power Banks use a Mini or Micro-USB socket for charging, and
full-sized USB sockets for discharging it charges your mobile phone, pds, digital camera, ipod etc .Buy online click here
