Thanks for the suggestions. No batteries yet, I just ordered them last week. I'm getting Luyuan battery boxes with Seplos BMS's and heat pads. I'll be using a construction job box which will be outdoors. I plan to insulate it but it will be pretty tightly packed when I place the Luyuan boxes in it. So I doubt that a convection heater will be able to heat the whole job box uniformly enough. If I have problems with the Seplos BMS's driving the heat pads my backup plan is to use an Inkbird temp controller to drive them instead. Those little temp controllers are great, I've used them on several projects.
I want to mount an EG4 chargeverter in the box too, so I can transfer charge to the house batteries from my Ford Lightning. So I'll need a small cooling fan too. I'll be using an Inkbird for that as well.
I want to mount an EG4 chargeverter in the box too, so I can transfer charge to the house batteries from my Ford Lightning. So I'll need a small cooling fan too. I'll be using an Inkbird for that as well.