Amazon.com : NB-5L Lithium-Ion Battery - Rechargeable Ultra High Capacity (1200 mAh) - replacement for Canon NB-5L Battery : Digital Camera Batteries : Electronics
Amazon.com : PowerTrust 1400mAh NB-5L Battery (2-Pack) for Canon PowerShot S100 S110 SD700 is SD790 is SD800 is SD850 is SD870 is SD880 is SD890 is SD900 is SD950 is SD970 is
Kastar Battery AC Travel Charger for Canon NB-5L 5LH PowerShot SD850 IS SD850IS - Helia Beer Co
Green Extreme Compact Smart Charger with LCD Screen for Canon NB-4L/NB-5L - Newegg.com