The battery of Wicked Chili came good and securely packed in us. First I loaded the battery into the GoPro with the charging cable of the camera, me but then decided here an additional charger to buy. Again, I have bought a device of the same brand and am really happy. The battery I have alternately with the original battery by GoPro used & no appreciable difference may find (apart from the purchase price). With multiple snorkeling trips I have the daily exchange the original battery & the battery of Wicked Chili used. The trips always lasted about an hour (plus - minus 15 minutes) and both batteries have persevered without problems. Also you could see the recordings transferred to the tablet even via WiFi without having to reload after. For me, a strong buy recommendation. Complementing as already written above, I would (for 2 batteries) recommend an external charger.