How cold did your batteries get?

[acoleman43]

With the "historic" cold weather this week, how cold did your batteries get? what did you do to protect your electrical equipment?

[howson]

Temps were low (for NW Florida). The batteries are tucked away in the passthru so I didn't do anything out of the ordinary.

[TucsonJim]

Since I live in Southern Arizona, it's rare to see low temps below freezing, and typically they only last a couple of hours until it warms up again. So I have three Battle Born batteries on the A frame of my trailer. But even if we travel somewhere in much colder weather, I'm not too worried about them. Battle Born batteries are designed to accept a charge down to 24°F. And they will continue to provide power down to -4°F.

Jim

[AlexPeterson]

Today is forecast to actually get above 0F! Low tonight is only -8, the warmest low in a week. My batteries are safely in the heated garage. We leave for AZ tomorrow and will put the small lead-acid in until we get to decent temperatures for the lithium.

[Guest]

Since I live in Southern Arizona, it's rare to see low temps below freezing, and typically they only last a couple of hours until it warms up again. So I have three Battle Born batteries on the A frame of my trailer. But even if we travel somewhere in much colder weather, I'm not too worried about them. Battle Born batteries are designed to accept a charge down to 24°F. And they will continue to provide power down to -4°F.

Jim

Jim,

The problem with BB and some other manufacturers is the low temp cut off for charging is really not a single value but rather a curve or linear relationship. The only maker I have seen that posts this curve is Trojan. So while some batteries can handle a 1C charge there is no way it can handle this charge right down to 24F as an example. I believe manufactures want to keep the lithium use simple to not overwhelm the consumer in order to keep sales up. I would rather they keep us informed in how to get the most out of these expensive batteries. Such as storing at 50% SOC and use beween 20% - 80% SOC for increased longivity.

Jim