Laptop batteries can still be premium item. Especially Dell. If you don't buy a business class laptop, it's very likely you cannot order the battery online. You

Laptop batteries can still be premium item. Especially Dell. If you don't buy a business class laptop, it's very likely you cannot order the battery online. You have to call dell support. Dell support is an India call center that will ask for $70 for a shipping label so you can send the machine in to get diagnosed, even if the bios is saying battery health is poor and you don't need a diagnosis. They refuse to just sell you a new battery from the phone or online. They refuse to give you a cost estimate because they want you to have sunk cost before they give an expensive quote. You send in the machine and it's $60 for battery and $80 for servicing. Aliexpress has the batteries for $20 but there's horror stories about exploding batteries. You can easily pay $200/yr if you want to keep your machines at 50% charge or better. Be sure to see how easy it is to switch a battery before buying a new laptop.