I recently bought a laptop battery replacement for my W500 via ebay. All sounded good, "original Lenovo" etcetc.
And indeed, when the package arrived it was genuine, yet after inserting the battery and checking what the energy manager told me, I was quite stumbled:
Mfg Date: 2006-10-28
Warranty Status: out of Warranty
Load count: 0
So, I am aware that Li-Ion batteries are aging even unused, so what to do about it? How much will the capacity suffer after 4 years in storage? Is it worth keeping it or should I return it to the dealer?