inspiron 5570 battery replacement cost

It doesn't look like we have any available on our website under spare parts. I'd recommend contacting the out of warranty line to see if you can have a Dell quote created. If you want to go 3rd party, this battery seems to be compatible which is roughly $100 USD. I'd try to stick to the OEM parts for compatibility. If you need something cheaper, then your mileage may vary but options are out there.