【Sufficient Battery Power】 Two 2000mAh rechargeable batteries for LP-E6/E6N offer sufficient battery power for photographers, vloggers, and filmmakers who engage in outdoor creation and help them capture every moment that is too precious to miss. NOTE: For optimal battery longevity, please fully charge the battery before first use 【Versatile Charging Case】 Not just a charger. The USB charging case can simultaneously charge two batteries and act as a portable travel case to protect batteries from impact, dust, and debris. It also features two SD card holders and works as a portable charger for smartphones when batteries are installed inside 【Full Charging Protection】 Designed with an advanced protection system, the charging case effectively prevents overcharge, overheating, overcurrent, overvoltage, electric shocks, and short circuits for safe charging 【Efficient Charging Process】 Equipped with two input ports (micro USB and USB Type C), the charging case can receive power from different types of charging cables and fully charges a battery in just 2 hours. A USB Type A output port can be used to charge your smartphone on the go 【Enjoy Wide Compatibility】 The battery charger case is fully compatible with original Canon LP-E6 battery. Compatible with Canon 5D Mark II, III/ 5D Mark IV/ 5DS/5DS R/ 6D Mark II/ 7D/ 7D Mark II/ EOS 60D / EOS 70D / EOS 80D / EOS 90D