Quinte Fishing

How does everyone keep the batteries warm all day?
Down here on Lake St Clair I am going to try out a cordless for the first time, looking for ideas to keep the batteries warm while not in use
I have heard that the freezer gel packs work well if you warm them up in hot water stored in a cooler bag with your batteries
Other ideas are welcome

Thanks

would not want to use the gel packs incase one gets puctured. Insulated cooler bag with a few hot shot hand warmers does the trick for me. buy a case of them at costco. Bought the bag for 2$ at value village.

_________________
I am a very quick learner and try to be the best at what I do.
My friends call it OCD. I call it Passion.