Bought the battery online, put it in an charged it until full. Worked great for about a day and then just shut off and wouldn't power on or hold any sort of charge. PSP plays when plugged in so it is not the system. Maybe it was just a bad battery, but I would recommend searching for the Sony one instead of any 3rd party.
No, I would not recommend this to a friend
Rating 1 out of 5 stars with 1 review
Brand new Lenmar battery to replace my tired old one in my PSP. Took the battery out of the package and put it in unit to charge and nothing happened. Did not charge at all. Likely these batteries have suspicious origins. Definitely do not buy this battery.