Prius V 7 seat with factory lithium battery

Hi all recently picked up a Prius V 7 seater for a project, the head gasket has failed at 297,500km I am half way through sorting that out so will be lurking around this space for the next little while

Question: been wondering about the factory fitted lithium battery which is mounted inside the console, have not been able to find any posts from anyone that has ever replaced this style of battery and was just wanting to hear from anyone with any experience with this sort of pack, some photos of the pack or just the modules in it would be awesome purely for curiosity and education of course! ..

Im just a little nervous about this lithium pack mainly because I don't have any spares, unlike the old style nimh which i have quite a few of!

Cheers

Matt