We appreciate your response on this.
Not good enough. The unique selling point of Anker is good customer support. Without that, many of us would not be here.
To claim refurbished is backed by Anker's support, but not actually the same duration of support, scrubs the Anker's customer support advantage.
What you are actually saying is a refurbished product is aged, will not last as long, it will not actually last 18 months, or a significant risk it will not. Your 3 months warranty is implying the refurbished product will die from 3 months onwards.
If you are stating a product will last 1/5th the time, why are you offering for more than 1/5th the price?
You are opening the argument up to buy 2nd hand used buyer beware.
My recommendation is to offer the same 18 months warranty, but state the product has scuffs, sign of usage.