A number of factors ranging from battery use, exposure to elements, battery quality, to old age can suck up the juice out of your battery.
But before you consider tossing out your dead laptop battery for a new one which by the way might cost you a small fortune: I want you to know that you can still revive that dead or dying battery, reinstating at least 60% on the power it had. So, read this carefully!
The procedure outlined below may, or may not work. Like I mentioned earlier, it all depends on your battery and the factors that led up to its death. Though it worked, but be advised: “you proceed at your own risk”.

