Amazon.com : Wasabi Power Battery (2-Pack) and Charger for Sigma BP-51 and Sigma dp1 Quattro, dp2 Quattro, dp3 Quattro, fp, fp L : Electronics
Kastar 1-Pack Battery and LTD2 USB Charger Replacement for Sigma BP-51 Battery, SIGMA dp1 Quattro, dp2 Quattro, dp3 Quattro, Sigma fp Digital Camera - Walmart.com
Kastar Battery Travel Charger for SIGMA BP-51 & SIGMA dp1 Quattro Digital Camera | eBay