Amazon.com: Synergy Digital Camera Battery Charger, Compatible with Pentax Optio S5I Digital Camera, 110/220V, Compatible with Fuji BC-65 Charger for Fuji NP-40, Sanyo DBL-50 Battery : Electronics
Amazon.com : Wasabi Power Battery (2-Pack) and Charger for Pentax D-LI8, D-LI85, D-L18 and Pentax Optio A10, A20, A30, A36, A40, E65, L20, S, S4, S4i, S5i, S5n, S5z, S6, S7, SV,
Amazon.com : Replacement for Pentax Optio S5i Battery and Charger with Car Plug and EU Adapter - Compatible with Pentax D-LI8 Digital Camera Batteries and Chargers (750mAh 3.7V Lithium-Ion) : Electronics
Amazon.com: MaxLLTo Replacement UC-E6 / UC-E16 / UC-E17 Photo Transfer Data Cable for Pentax Optio S/Optio S10 / Optio S12 / Optio S4 / Optio S40 / Optio S45 Digital Cameras : Electronics
Pentax Optio S5i: Digital Photography Review
Pentax Optio S5i Review: Digital Photography Review
BargainFY USB Data Sync Transfer Image Cable Lead For Pentax Optio S5i: Amazon.co.uk: Computers & Accessories
Amazon.com : Replacement for Pentax Optio S5i Battery and Charger - Compatible with Pentax D-LI8 Digital Camera Batteries and Chargers (750mAh 3.7V Lithium-Ion) : Electronics
Amazon.com : 2 Pack - Replacement for Pentax Optio W10 Battery + Charger - Compatible with Pentax D-LI8 Digital Camera Battery and Charger (750mAh 3.7V Lithium-Ion) : Electronics