[MoonUnit]

Has anyone ever used an electric heating blanket to heat their Li batteries?


I have Tesla modules, and am considering heating them (to aid charging when cold), but would like to avoid the perils of plumbing the coolant loop. Particularly within the battery boxes where I won't easily be able to see a leak. Thus I thought one could wrap them in electric blankets.



My concern with blankets would be that I don't think it would be a very effective way of heating the batteries, as I don't believe the contact between the batteries and the blanket would be very good.


Or perhaps one could use warm air?

 

[MoonUnit]

Thin custom silicon heating pads with built-in thermostats can be ordered cheap from china, when things get back to normal. eBay would be first stop

Interesting - I shall investigate those. Many thanks for the tip.

 

[MoonUnit]

What kind of application are you using the modules in?

I am converting a Beetle. 5 Tesla modules, Hyper9 motor. I want to be able to use it as an everyday city car (not that I drive everyday).

 

[MoonUnit]

Thanks for the input. The Tesla modules do have liquid cooling channels, which I may yet use. A warming blanket would be easier to use but I think much less effective and may mean the thermistors in the modules are not accurately reporting the battery temps.


The AC heating is an interesting idea, but, for me, is not something I understand well enough to want to use. If it is effective as a method, I'm surprised Tesla don't use it already.