A word of caution. Some years ago I bought that brand of charger because it was inexpensive. Several of them in fact. Over the course of a year each of the chargers shorted out, which is why I purchased several of them, each successive charger as a replacement to the previous one that failed.
At the time I was not as diligent with checking battery condition as I am now. During the period I was using those chargers I had more batteries puff or experience cell failure than I ever had before or since. Was the cause the charger? I don't know but after leaving the brand for a higher quality charger I have not experienced those issues again.
Sent from my iPhone using Tapatalk