With 80 watts of output from mono-crystalline cells, this solar panel will charge your Bixpy PP-378 Battery or Bixpy PP-333 Battery in about 6 to 10 hours. NOTE: This solar panel will NOT charge other Bixpy Batteries and is specifically designed to charge the Bixpy PP-378 Battery or PP-333 Battery. *Note: THE MOTOR WILL NOT RUN WHILE THIS SOLAR PANEL IS CONNECTED. DO NOT SIT OR PUT WEIGHT DIRECTLY ON SOLAR PANELS. * Batteries in any pictures above not included and sold separately.