Just purchased a battery for my late 2013 model; and after about a month of it working well, it’s now gone into the “Replace Now” status too. By all accounts it seems like it should be fine. Laptop is saying it has great capacity, and it’s only got 9 cycles on it.
This battery issue seems to be affecting all parts of my system. Laptop overall is less responsive, boot up takes longer, and random programs opening up, etc. - even while plugged in. *Sigh*