Purchased to replace the power adapter for my HP laptop after my office was flooded. It was a lot cheaper than the original. It's strange that now the battery doesn't charge after being plugged in, even when the device is turned off. The machine runs normally, but the charge value remains constant. Maybe it's not 100% compatible with the battery? Maybe the battery is losing its charge capacity? I'm not sure what the reason is, but I didn't notice it with the stock PSU.