HP, Lenovo, and Dell all sell replacement ... Wondering if it's time to replace your laptop or battery? Replace your laptop ...

5] Check if the laptop battery needs a replacement The laptop battery performance and capacity decrease over a period of time. What you need to check is if the charge capacity is decreased a lot ...

If your laptop is still using NiCad, it's time to find a compatible lithium-ion battery or -- more likely -- replace your laptop entirely, since it's clearly out of date. NiMH technology was NiCad ...