Battery Green Cell ® D-Li109 DLi109 for cameras Pentax K-r, K-2, K-30, K-50, K-500, K-S1, K-S2 7.4V 1600mAh
Original Replacement Camera 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
Amazon.co.jp: Roi Japan PSE Standard Inspection [Set of 2] PENTAX Compatible D-LI109 Compatible Battery KP K-r K-30 K-50 K-70 K-S1 K-S2 K-500 : Electronics
Source D-LI109 lithium battery for Pentax K-50 K-S1 K-30 KS2 K-R KR K500 k-2 DA40XS on m.alibaba.com
Pentax D-BH109 AA Battery Holder for K-r / K-30 / K-50 39100 | C.R. Kennedy