Samsung HMX-F90BN/XAA Battery - Replacement for Samsung IA-BP420E Digital Camera Battery (4200mAh, 3.7V, Lithium-Ion) Replacement Samsung HMX-F90BN/XAA Battery Replacement for Samsung IA-BP420E Digital Camera Batteries Lifetime Warranty Capacity: 4200mAh, Upstart Battery Brand On Sale for a Limited Time!