Amazon.com : BM Premium 2 Pack of NB-10L Battery and Charger Kit for Canon PowerShot G15, G16, G1X, G3X, SX40 HS, SX40HS, SX50 HS, SX60 HS Digital Camera : Electronics
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Pickle Power Nb-10l 10l Camera Battery + Led Usb Charger For Canon Sx40 Hs Sx40hs Sx50 Hs Sx50hs G1 X G1x G15 G16 Sx60 Hs G3x - Digital Batteries - AliExpress
Green Cell Battery for Canon PowerShot G15, G16 etc. 800mAh, 7.4V | Spares.se