Lenovo P/Y/Z Series :: Slow Charging After Battery Reaches About 80 Percent Or So - Y510p

I was just wondering what the average time was for a totally dead y510p to charge while using it for some light browsing on the internet. It seems to charge really slow especially after it reaches about 80 percent or so. I was curious to see what other owners have had in terms of charge time. I seem to have narrowed it down to about 5 percent every 10 minutes while my cousins HP charges way faster. Not too upset about it but a bit curious. For example as I am typing this out it's been at 99% for the past 20 minutes or so, and HW monitor shows it charging really slowly but when its at like 50 percent it charges at a decent rate maybe about 10 mwh every 5 seconds or so.