Panasonic DMW-BCK7E Camera battery replaces original battery (camera) DMW- BCK7E, NCAYN101H 3.6 V 680 mAh | Conrad.com
Amazon.com: 2 Pack - Digital Camera Battery and Charger Replacement for Panasonic DMW-BCK7E - Also Compatible with Panasonic DMW-BCK7 (680mAh 3.7V Lithium-Ion) : Electronics