Amazon.com: Synergy Digital Camera Battery, Works with Pentax Optio L20 Digital Camera, (li-ion, 3.7V, 710 mAh) Ultra Hi-Capacity, Compatible with Fuji NP-40 Battery : Electronics
Pentax OPTIO L20 sample photos - ExploreCams
Pentax Optio L20 - full specs, details and review
User manual Pentax Optio L20 (English - 269 pages)