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    Charging NiMH (eneloop pros) and sealed lead acid in sub-zero (<32degF) conditions

    Hello all, I wanted to ask some advice about charging batteries outdoors in the cold. I know it's a niche topic, and many will just say 'don't'. Anyhow... Lithiums aside, as I know most common chemistries become dangerous if charged when the electrolyte is frozen. I'm trying to work out the...