Hello Friends, I am using mi Power bank 5 month, my handset is redmi note 4, battery is 4100 mah , charging 3 times to 80% , first time usings starting 4 led blinking 50% above to 3 led blinking, second time using 3 led blinking 48% above to 2 led blinking to 78% and balance charge is using to 28% to 100% using., I am totally stratified thank you