Samsung Q1 Ultra Mobile PC 6 Cell Battery Designed specifically for use with the Samsung Q1 Ultra Mobile PC, part numbers: NP-Q1-V000, NP-Q1-V002, NP-Q1BV000, NP-Q1-V004, NP-Q1-F000 6-cell lithium-ion battery replaces 3-cell standard battery that comes with Q1 Provides up to 6 hours of battery life Recharges in just 3.5 hours 1-year warranty