K&F Concept LP-E17 Camera Replacement Battery 1250 mAh,Micro USB Dual Charger Compatiable with Canon EOS RP、Rebel T8i、T7i、T6i、T6s、SL2、SL3、EOS M3、M5、M6 Mark II、77D、200D、750D、760D、800D、8000D (2-Pack)

SKU: KF28.0003

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Battery life varies with different video camera quality settings 
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No it doesn't, it seems like none of the batteries have a date code 
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Mine didn't damage my camera. Just make sure your camera uses LP-E17 batteries. 
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Yes, the KF battery charger can charge the original battery and KF's battery. But the original charger cannot charge the KF battery.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. 
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Compatible, it uses the included USB Type A to USB Type C cable, so you can plug it into a travel adapter with a USB port. 
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Yes, if you google for batteries for Canon Rebel T7I - Result: Canon LP-E17 battery pack for EOS RP, 77D, M6, M5, M3, Rebel T7i, T6i 
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I've tried both, and it's pretty fast either way. 
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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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I guess that means they are safe to use the camera.