DFRobot 7.4V LiPo Battery Charger - FIT0398 neopixel ring It is connected to a

It is connected to a mobile app that allow the usage of all of Android smartphones' capabilities such as LCD Screen

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DFRobot 7.4V LiPo Battery Charger - FIT0398 neopixel ring It is connected to a7. 4V LiPo Battery Charger The 7. 4V LiPo Battery Charger safely charges 2S (7. 4V) lithium polymer battery packs with balanced charging to ensure both cells reach full charge evenly critical for pack longevity and safety. Technical specifications Input AC adapter (included specs vary) Output 8. 4V (2S LiPo full charge) Balance Yes (2S)