The Volt battery pack has a very advanced thermal management system. I’m using most of the stock parts. I had to add some extra hose to deal with the battery being broken up into 3 chunks. I’ve also looped in the charger and a heater core in case I want to try to use it to cool.
There is an integrated heater as well to keep it from getting too cold.
For my initial testing I just used tap water. There was enough left over coolant to turn it all orange, so I wasn’t too worried about getting it replaced, but I had a good window today to finally get it replaced.
So I drained it out, vacuumed it and filled with the proper dexcool coolant.