Amazon.com : Synergy Digital Camera Battery, Works with Pentax K30 Digital Camera, (li-ion, 7.4V, 1200 mAh) Ultra High Capacity Battery : Electronics
Original Replacement Battery D LI109 For Pentax K30 K50 K70 K500 KR KS2 KS1 K 30 K 50 K 70 K 500 K R K S2 K S1 1050mAh|Mobile Phone Batteries| - AliExpress
Original Replacement Camera Battery 1050mAh D Li109 For Pentax K30 K50 K70 K500 KR KS2 KS1 K 30 K 50 K 70 K 500 K R K S2 K S1|Mobile Phone Batteries| - AliExpress
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Amazon.com : Kastar D-Li109 Battery (2-Pack) for Pentax D-Li109, DLI109 Work with Pentax K-R, K-30, K-50, K-500, KR, K30, K50, K500 Cameras… : Electronics
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Kastar Battery Wall Charger for Pentax D-Li109 D-BC109 & Pentax K-30 K30 Camera | eBay
Pentax K30 Backup battery replacement - YouTube
Kastar Replacement Battery for Pentax D-Li109 D-BC109 & Pentax K-30 K30 Camera | eBay
Original Replacement Battery D-li109 For Pentax K30 K50 K70 K500 Kr Ks2 Ks1 K-30 K-50 K-70 K-500 K-r K-s2 K-s1 1050mah - Mobile Phone Batteries - AliExpress