BLN-1 Battery Pack for Olympus PEN E-P5, EP5, PEN-F, PENF, OMD E-M1, EM1, E-M5, EM5 MarkII, OM-D E-M5 Mark II Digital Camera - AliExpress
BLN-1 Battery for Olympus BLN1 OM-D PEN F E-M5 EM5 Mark II E-M1 EM1 E-P5 EM1 | eBay
Olympus PEN E-P5 CSC Review | ePHOTOzine
Amazon.com: BTBAI 2X Battery for BLN1 BLN-1 BCN1 BCN-1 em5 em5ii e-m5ii e-m5 ii e-m5 Mark 2 e-m5 Mark ii em1 e-m1 ep5 e-p5 OMD om-d Pen-f Digital Camera s1a : Electronics