Pentax gets tough with Optio WG-2 and WG-2 GPS rugged cameras: Digital Photography Review
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Amazon.com: Replacement for Pentax WG-3 Battery and Charger - Compatible with Pentax NP-150 Digital Camera Batteries and Chargers (1000mAh 3.7V Lithium-Ion) : Electronics
Pentax Optio WG-2 Digital Camera Review - Reviewed
Amazon.com : Battery for Pentax Optio WG-1, WG-2, WG-3 GPS Digital Camera : Electronics
Kastar Battery LCD AC Charger for Pentax D-Li92 D-BC92 & Optio WG-1 GPS WG-2 GPS | eBay
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