K&F Concept 2 Pack 2100mAh EN-EL15 EN-EL15A/B Battery and Dual Battery Charger Set for Nikon D7000 D7100 D7200 D7500 D850 D750 Z5 Z6 Z7(Arrives before August 7th）
SKU: KF28.0001
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No, it's just a micro USB cable in the package. You need to use your own USB plug to charge it.
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I've pretty much only used these batteries when doing video work, and haven't gotten any hum. Hope this helps.
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All K&F camera batteries come with a 1-year warranty
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yes it can.. because it is a usb charger
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The LED light will turn green when the corresponding battery is fully charged.
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Hmm.. I've never timed it, but it's the same as the original battery. I usually carry 5 batteries but never need to use 5, I only use 2 for all day shooting, which is literally a full day (8-10 hours). Hope this helps.
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Yes, shows the correct battery level
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It will not cause problems to the data stored on the SD card, please use it correctly according to the requirements of the SD card.
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It uses the accompanying USB micro b to USB Type A cable, so you can plug it into a travel adapter with a USB port.
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Simply connect any 5V 2.1A Max output power source via the Micro-USB cable to safely charge the battery in the included charger. The connected power source can be a mobile phone adapter, a car charger, or a power bank, etc. But please do not directly connect the charger with power supply higher than 5V 2.5A.