K&F Concept EN-EL14 Battery and Battery Charger for Nikon EN-EL14 EN-EL14a Battery Compatible with Nikon D3500 D5600 D3200 D3300 D3400 D5500 Coolpix P7800 P7700 P7200 P7100 P7000 (1050mAh*2)

SKU: KF28.0020

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I've tried both, and it's pretty fast either way. 
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Third-party batteries can be charged with KF chargers, but based on reliability considerations, KF batteries should use KF chargers as much as possible, and our products are guaranteed safe. 
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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.