UK Battery for PENTAX Optio M50 Optio S1 D-Li78 3.7V RoHS | eBay
600mAh Pentax Camera Battery D-LI78
Pentax battery D LI 78 for Pentax Optio M50/ M60 / V20 / W60 / W80 / L50 / S1|Storage Batteries| - AliExpress
Pentax Optio M50 Battery Replacement
Amazon.com : Wasabi Power Battery for Pentax D-LI78, D-L178 and Pentax Optio L50, Optio M50, Optio M60, Optio S1, Optio V20, Optio W60, Optio W80 : Digital Camera Batteries : Electronics
PENTAX Optio M50 - A compact digital camera with an easily usable compact / lightweight body, enabling for photography to be enjoyed readily | RICOH IMAGING
Amazon.com : Replacement for Pentax Optio M50 Charger & Car Plug Adapter - Compatible with Pentax D-LI78 Digital Camera Chargers (100-240V) : Digital Camera Batteries : Electronics
Pentax Optio M50 Battery - Replacement for Pentax D-LI78 Digital Camera Battery (750mAh, 3.7V, Lithium-Ion) | Walmart Canada