The GoPro Dual Battery Charger with Enduro Battery bundle features a dual charger and a standard 1600mAh battery to power your GoPro MAX camera. The charger allows you to charge a single battery or two batteries sequentially, and it supports standard or Enduro batteries for the MAX camera. It charges the battery with the most remaining runtime first to provide you with a fully charged battery as soon as possible. Separate LED indicators confirm the charging status of each battery.