Amazon.com: Replacement for Sigma SD14 Battery and Charger with Car Plug and EU Adapter - Compatible with Sigma BP-21 Digital Camera Batteries and Chargers (1600mAh 7.4V Lithium-Ion) : Electronics
Sigma SD14 Battery – Infinisia
Sigma SD14 - Wikipedia
Kastar Battery Dual USB Charger for Sigma BP-21 Sigma SD1 SD1 Merrill SD14 SD15 | eBay
Kastar 2-Pack BP-21 Battery and LTD2 USB Charger Replacement for Sigma BP-21 Battery, Sigma BC-21 Charger, Sigma SD1, SD1 Merrill, SD14, SD15 Digital Camera - Walmart.com
My SD14 repair work: Sigma Camera Talk Forum: Digital Photography Review