On Februarty 16, 2021, I bought dji mini 2 combo with 3 batteries.  I flew the drone for 2 times only.  I kept the charged batteries in the charger without knowledge of storing the charged batteries in the charger is an issue.  Now one of them just blinking 3 times very fast then pause and repeat the same thing forever.  I am assuming that battery is damaged or dead.  I can possibly get a battery replacement or not?

Hi, there. If the LED 1-4 blink three times and then turn off, then start blinking again and turn off, it means that the battery loses efficacy permanently, usually caused by over-discharge or over-charge. Please fill out the online repair request on our official web and send the batteries back. https://repair.dji.com/repair/index.

DJI Gamora Posted at 1-9 01:50
Hi, there. If the LED 1-4 blink three times and then turn off, then start blinking again and turn off, it means that the battery loses efficacy permanently, usually caused by over-discharge or over-charge. Please fill out the online repair request on our official web and send the batteries back. https://repair.dji.com/repair/index.

Thank you for your respond but I can not access to the link you gave me.  

NyingvCing Posted at 1-13 19:33
Thank you for your respond but I can not access to the link you gave me.

Sorry for the inconvenience caused. Please try the link below:
https://repair.dji.com/repair/index?site=brandsite&from=nav