I have a non-apple charger that came with my refurbished Iphone 6s plus and I am not sure whether I should be using it or not. In my country, original apple chargers cost a lot of money, and I don't know if it's necessary to make the purchase or not. The charger is a Sharkk HYP-14-1000. I have been using it for 2 years so far and it works fine, it makes a bit of a hissing noise when plugged in, but that's all. Now I have replaced my iphone's battery because it was at 73% of full capacity, and I'm wondering whether I should buy an original apple charger or continue using the Sharkk one. What do you think? If I use this alternative charger, will it damage my new battery?