Most likely, as for options regarding the battery in each, best option in my view would be to replace them. Which then brings you to either getting the same replacement as the ones in currently in your Venue 8 Pro or going third party.
Hi I have Dell Venue 8 pro with swelled battery. It has dislodged the screen and now I'm keeping it off and disconnected from the charging adapter as not sure if it will cause any fire.
Do I need to send this to Dell. Here are some numbers I got from the tablet:
Dell Venue 8 Pro (5830)
Made in CN