【Charge for 】: Kratax Ring battery charge station compatible with Ring Video Doorbell 2, Ring Spotlight Cam, Ring Door View Cam and Stick Up Cam Battery 
【Charging cable】: with Type-C charging cable that can fully charge 2 batteries in about 4 hours. 
【Safety & Quality Guarantee】: Kratax Ring battery charge station is CE, RoHS, UL, FCC Certified, 100% brand new and high quality! 
【Reversal polarity protection】: Intelligent charge with CC/CV. Short-circuit and reversal polarity protection to ensure safety. 
【Built in Smart Protection】: Protection circuit actively manages battery performance during charging and discharging. Helps detect and prevent over-charge, over-discharge, short-circuit, or over-current by shutting off the device or charger.