The jury is still out but so far the new charger is not much better than the one I replaced. It charges faster but does not seem to hold a charge much longer. That is the reason I replaced the original charger, it worked but would not hold a charge for more than two hours which is about what this new one is doing. I have "cycled" the new charger many times as directed, but it does not change. The worst part is that when it gets down to about 25 to 30% you better have it plugged in or the computer will quickly shut down. If you get a low charger warning - it is too late.