NP-50 vs NP-50A batteries for Fuji 660EXR vs 550EXR: Fujifilm FinePix Talk Forum: Digital Photography Review
Amazon.com : 2 Pack - Replacement for Fujifilm XF1 Battery + Charger with Car & EU Adapters - Compatible with Fujifilm NP-50 Digital Camera Battery and Charger (1100mAh 3.7V Lithium-Ion) : Electronics
Amazon.com : Synergy Digital SDFNP50 Lithium Battery - Rechargeable Ultra High Capacity (3.7 Volt - 1000 mAh) Replacement for Fuji NP-50 Battery for Fujifilm FinePix F100fd, F300EXR, F50fd F500EXR, F600EXR, F60fd : Electronics
Amazon.com : ProMaster NP-50 XtraPower Lithium Ion Battery for Fuji F300/F500/F550 : Digital Camera Batteries : Electronics
Fujifilm X20 Battery and Charger with Car Plug and EU Adapter - Replacement for Fujifilm NP-50 Digital Camera Batteries and Chargers (1100mAh, 3.7V, Lithium-Ion) - Walmart.com
DOT-01 Brand 1400 mAh Replacement Fujifilm NP-50 Battery and Charger for Fujifilm X10 Digital Camera and Fujifilm NP50 - Walmart.com
Fujifilm NP-50 Rechargeable Lithium-Ion Battery
Amazon.com : Replacement for Fujifilm F505EXR Battery - Compatible with Fujifilm NP-50 Digital Camera Battery (1100mAh 3.7V Lithium-Ion) : Electronics
Amazon.com : Fujifilm NP-50 Lithium Ion Rechargeable Battery for Fuji F60fd, F50fd & F100fd Digital Cameras - Retail Packaging : Electronics
Fujifilm FinePix F660EXR Digital Camera Battery Lithium-Ion (3.7 v 1000 mAh) - Replacement for Fuji NP-50 Battery - Walmart.com