LifePO4 heater pads

[Sonnyboy]

I am in Vermont and want to add heating pads to my battery box in a shed that powers a small freezer. I’ve read a few threads on what people have done but none that have the heater pads turn on by timer or sunlight. If the panels are not getting any sunlight, I don’t want to waste battery energy to heat them. Does anyone have a solution for this? I have two-three 100ah lifepo4 seize batteries with built in bms. I have noticed in the cold, my back up agm 67ah battery will last much longer probably due to the temps/charging restrictions of the lifepo4.

Thanks

 

[sunshine_eggo]

I am in Vermont and want to add heating pads to my battery box in a shed that powers a small freezer. I’ve read a few threads on what people have done but none that have the heater pads turn on by timer or sunlight. If the panels are not getting any sunlight, I don’t want to waste battery energy to heat them. Does anyone have a solution for this? I have two-three 100ah lifepo4 seize batteries with built in bms. I have noticed in the cold, my back up agm 67ah battery will last much longer probably due to the temps/charging restrictions of the lifepo4.

Thanks

Simple, Indipendent Battery Box Heater

To get the document, click on the orange button at the top of the page. This is a simple 20W battery Box heater that operates independently of the rest of your system. I use this for storing unused cells in a very cold climate, but it can be...

diysolarforum.com

 

[mactech]

I keep 8 x 100aH (2S4P) batteries at 70F with a single heating pad in an insulated box. It is on a timer when nights will be getting too cold.