Hi, I am considering upgrading my motorhome house batteries to lithium and adding solar. I have a question maybe someone on here can answer.
I know most lithium batteries have a built-in BMS that disables charging at freezing temperatures. The manuals of solar controllers say that you should always hook up a battery on the output before connecting solar panels to the input of the controller. So what happens in freezing temps when the battery BMS stops accepting a charge? Now the solar panels are connected to the solar controller but effectively there is no battery hooked up.
I am considering a cheaper lithium battery that does not have a low temp cut off. I thought this would be a big hassle, but it seems like I may have a low-temp hassle anyway if I have to be sure to disconnect the solar panels when the outside temp dips below freezing?
Thanks.
I know most lithium batteries have a built-in BMS that disables charging at freezing temperatures. The manuals of solar controllers say that you should always hook up a battery on the output before connecting solar panels to the input of the controller. So what happens in freezing temps when the battery BMS stops accepting a charge? Now the solar panels are connected to the solar controller but effectively there is no battery hooked up.
I am considering a cheaper lithium battery that does not have a low temp cut off. I thought this would be a big hassle, but it seems like I may have a low-temp hassle anyway if I have to be sure to disconnect the solar panels when the outside temp dips below freezing?
Thanks.