I'm from Ukraine and getting ready to build a 8s lifepo4 battery for backup power supply for my home.
I ordered cheap and loud solar inverter from aliexpress, and because it's loud i'm planning on putting it to room outside house.
Because of environment temperature is kind of mad and may variate from -30 defree celsius (-22f) to +35c (104f) i expect lower temperature in this room to be about -5c (23f), maybe -10c in worst cases.
I'm gonna build insulated box for battery, and ordered BMS with heating function, and heating pad (one for bottom, a bit smaller that battery, battery is 35*28 sm, heating pad is 30*25sm).
1) Do you think that will be enough?
2) Most important, i cannot find any documentation about heating function. BMS has red and black wire on heating connector, and several green wires connected to one connector. How to connect it? Like green to heating pad negative and heading pad positive to battery positive?
What is red and black wire stands for?
And i've seen some video where some guy connecting it through relay, what the purpose of this?
3) Is ot okay if inverter won't have any insulated box or like that, and will it work ok on cold enviroment (the manufacturer declares that range is -10 to +50 c (14 to 122f)
Thanks very much for help.
I ordered cheap and loud solar inverter from aliexpress, and because it's loud i'm planning on putting it to room outside house.
Because of environment temperature is kind of mad and may variate from -30 defree celsius (-22f) to +35c (104f) i expect lower temperature in this room to be about -5c (23f), maybe -10c in worst cases.
I'm gonna build insulated box for battery, and ordered BMS with heating function, and heating pad (one for bottom, a bit smaller that battery, battery is 35*28 sm, heating pad is 30*25sm).
1) Do you think that will be enough?
2) Most important, i cannot find any documentation about heating function. BMS has red and black wire on heating connector, and several green wires connected to one connector. How to connect it? Like green to heating pad negative and heading pad positive to battery positive?
What is red and black wire stands for?
And i've seen some video where some guy connecting it through relay, what the purpose of this?
3) Is ot okay if inverter won't have any insulated box or like that, and will it work ok on cold enviroment (the manufacturer declares that range is -10 to +50 c (14 to 122f)
Thanks very much for help.