Device out of power regardless of battery %?

A few months ago my iPad suddenly started powering down due to a depleted battery while the percentage shows otherwise. The device currently only lasts a few minutes while off the charger, but the percentage shown indicates that the battery is almost full. The problem persists with the use of different chargers and I have tried recalibrating the battery by performing a hard reset and letting it charge after that, but that doesn't seem to work. I'm thinking of getting the battery replaced, but I was wondering if there really isn't a way to solve this. If there is, I'd love to know!

Thank you for your time

Kind Regards

Daniël Salarie