Redmi note 4 pro battery mah July 8, 2019 16 32 64 128 Redmi note 4 battery mah Redmi note 4 battery mah capacity Redmi note 7 pro 4 64 battery mah Redmi note 4 battery problem Redmi 4 prime battery test Redmi 4 battery Redmi note 4 charging problem
