 " Battery Pack "@en, VW-VBT190 "@en "Panasonic - Pack"@en
"
Features

3.6V, 1940mAh(min.), 7.0Wh
Uses Battery Charger VW-BC10

"@en 
 " GoPro HD Cameras AHDBT-401 "@en "GoPro AHDBT-401: Rechargeable Battery | JEGS"@en
"1160mAh Lithium-Ion
Can Be Used For Spare Or Replacement
For HERO4 Black, HERO4 Silver"@en 