Originally Posted by Neko
Rather than using a bird-bath heater, I found this nice line-voltage thermostat for under $30.
I plan to put that in a picnic cooler connected to a drug-store heating pad. Set to 45 degrees it should keep the batteries very comfortable indeed.
Now, keeping them cool in the summertime, when the garage can reach 95-plus, is a different story. I guess a small fridge will be in order.
I'd say the real weak link is that heating pad, much less reliable, IMHO, than the lipo you are worried about.
If it fails, good-bye garage!