Amazon.com: Synergy Digital Camera Battery, Works with Nikon Coolpix W100 Digital Camera, (Li-Ion, 3.7V, 1000 mAh) Ultra Hi-Capacity, Compatible with Nikon EN-EL19 Battery : Electronics
En-el19 Battery Pack + Charger For Nikon Coolpix W100, A100, A300, S32, S33, S100, S3700, S6900, S7000 Digital Camera - Digital Batteries - AliExpress
Kastar Battery Dual Charger for Nikon EN-EL19 & Nikon Coolpix W150 W100 Camera | eBay
Battery For Digital Camera Nikon Coolpix W100 - Mobile Phone Batteries - AliExpress