The CALB batteries I had were definitely NOT happy if I tried charging
them below 40F. Fortunately, living in San Diego at the time, that was
not a worry. Now that I live further north, I do have to worry (or at
least once I get a new EV hobby build). You are right in that you need
to check the manual for the batteries.
Cheers, Peter
On 2/22/21 5:56 PM, Collin Kidder via EV wrote:
It heavily depends on the electrolyte / cell chemistry. I have
batteries from a Think City (made by EnerDel) and they are spec'd to
operate down to an extremely low temperature of -20C. That's -4F. I
don't think I'd charge them very hard at 0F but it seems that's in the
temperature range to be able to do so. I know that the pack has no
heater in it from the factory and people drive the things up here in
Michigan. The Think factory was in Indiana. If charging the cars in
winter was a problem we'd probably know it.
On Mon, Feb 22, 2021 at 6:48 PM nathan christiansn via EV
<ev@lists.evdl.org> wrote:
Hi all,
I live in northern utah, and it can get fairly cold here in the
winter(close to 20 fahrenheit in the night)
I am using nissan leaf batteries in my Geo Metro EV conversion. The leaf
batteries, as with most other lithium batteries, is not supposed to be
charged below 32 degrees fahrenheit.
I am worried that I will not be able to charge my EV during the winter
because of the cold outside temperatures. I also do not currently have
access to a heated garage.
I am considering adding a battery heater. I was thinking of attaching one
of those silicone heating pads that are used as ICE block heaters to
the bottom of my 2 steel battery boxes, but I was wondering if anyone had
any better ideas?
Nathan
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