Sunvalley Brands via Amazon offers the RAVPower GoPro Hero 5/6 Battery Charger Set for $23.99. Coupon code "Q75QBBVV" cuts it to $17.99. With free shipping for Prime members, that's $6 off list and the lowest price we could find. It includes two 1,260mAh RAVPower replacement batteries for GoPro cameras and a dual port charger. Deal ends January 31.