 "Panasonic VW-VBT190 Lithium-Ion Battery Pack (Black)"@en-US "Accessories - Page 989 | EISF"@en-US
"This is an authorized aftermarket product. Fits with various Panasonic brand models. It has a oem part # VW-VBT190."@en-US 
 "GoPro HERO4 Rechargeable Battery"@en Battery | Sportsman's Warehouse"@en
"GoPro HERO4 Rechargeable Battery - Never miss an epic scene from your epic adventure with an extra rechargeable battery for your GoPro HERO4."@en 