Dell laptop Battery for inspiron 300M series

Dell laptop Battery for Vostro 3300
Dell 56 WHr 6-Cell Lithium-Ion Battery for Dell Vostro 3300/ 3400/ 3500/ 3700 Laptops
vostro 3300 bat     Technology   6-Cell lithium ion
  Capacity   56Wh
  Warranty
  6 Months
Dell 80 WHr 8-Cell Lithium-Ion Battery for Dell Vostro 3300
vostro 3300 bat 2     Technology   8-Cell lithium ion
  Capacity   80Wh
  Warranty
  6 Months