EasyAcc 2 x 1160 mAh Battery and Rapid Dual Charger Kit for GoPro Hero4, GoPro AHDBT-401, AHBBP-401 Advertised capacity is 100% accurate; absolutely no false labeling. Two-channel charger: Can charge 2 batteries at a speed of 3.8V 1160mA simultaneously. Grade A high-capacity battery cell inside batteries has a super long battery lifetime and no memory effect. The exceptionally long average lifespan of 543 charge cycles means that each battery will last for 2 years under normal use. This battery and charger kit comes with a 12-month warranty, and we??ll provide you with the best and most worry-free after-sales service. Safe and environmentally friendly; certified by CE, FCC, and RoHS; and protects against overcharging, overdischarging, short circuits, and overheating.