K&F CONCEPT NP-FW50 battery and dual slot battery charger kit for Sony Alpha 7, A7, Alpha 7R, A7R, A7R II, A7 II, A7S, A7S II, A7M2, A7SM2, A7RM2, A5000 A6000 A6300 A6500, a3000 , NEX-3, NEX-3N, NEX-5, NEX-5C, NEX-5N, NEX-5R, NEX-5T, NEX-6, NEX-7

SKU: KF28.0004

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You can charge one or two batteries 
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I can't give you an exact time to charge the battery - too many variables, how discharged the battery is, how old the battery is, etc. But I can tell you that what you plug in makes a huge difference. I use a small adapter that plugs into a 110V outlet instead of using a computer's USB port, and in particular a 5V 2A fast charger for my phone works best. 
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Battery life varies with different photography camera modes and picture quality settings 
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Micro and Type-C are input ports, they charge the battery. USB-A is the output port, which discharges the battery. 
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The battery will automatically match the applicable voltage of the camera, and the use will not be affected 
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This charger comes with 5V USB input and Micro-USB cable. It can be charged by any device with 5V USB output, such as wall charger or laptop or power bank etc. It's not from 110V or 220V. 
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Any USB charger will do. As long as it accepts European voltages, your phone charger will work. Super handy if you want to charge while driving.