Bests & Worsts Reviews from Amazon

Crashed the first time I had it plugged into my desktop. Charged 8 hrs as per instructions, plugged into outlet and turned "on", plugged computer into "Surge+Battery" receptacle, and 5 seconds into bootup it failed. Attempted twice more, same result. To make matters worse, I tested the voltage of my unit on battery and got 90 volts. Amazon refunded my money, thank you, but didn't want it shipped back. Very disappointed, will not buy again, and can't recommend.