Amazon.com : Replacement for Pentax Optio WP Battery and Charger - Compatible with Pentax D-LI8 Digital Camera Batteries and Chargers (750mAh 3.7V Lithium-Ion) : Electronics
D-li63 D-li108 Digital Camera Battery + Charger For Pentax Optio Ls1100 M30 M40 M90 M900 Rs1000 Rs1500 Nb1000 T30 V10 W30 - Digital Batteries - AliExpress
USB Battery Charger For Pentax Optio L50 M50 M60 S1 V20 W60 W80 D-LI78 D-BC78 | eBay
Battery Charger For D-Li78 D-L178 Pentax Optio M50 M60 W60 W80 S1 V20 L50 Camera | eBay
Pentax Battery Charger for Battery D-BC78 camera Pentax Optio M60 V20 W60 W80 | eBay