Amazon.com : BM Premium (2 Pack NB-10L Battery for Canon PowerShot G1 X, G3-X, G15, G16, SX40 HS, SX50 HS, SX60 HS Digital Camera : Electronics
Amazon.com : 2 Pack - Replacement for Canon PowerShot SX50 HS Battery - Compatible with Canon NB-10L Digital Camera Battery (1000mAh 7.4V Lithium-Ion) : Electronics
Amazon.com : Replacement for Canon SX50 HS Battery and Charger - Compatible with Canon NB-10L Digital Camera Batteries and Chargers (1000mAh 7.4V Lithium-Ion) : Electronics