[RE-wrenches] Lithium Ion tool batteries

[Jesse Dahl]

I live in far northern MN (it was -32F this morning) my shop is well insulated but I only heat when I working in there (wood heat). It was 22F in the shop this morning. My batteries give the “cold temp” light when I try charge them even when as warm as 20F. So I need to bring my batteries in at night. It doesn’t take to long to warm them up if I leave them out there at night. Not sure what the magic temp is on them. 

Jesse 

Sent from my iPhone

> On Jan 19, 2022, at 10:39 AM, Foxfire Energy <dan at foxfire-energy.com> wrote:
> 
>  Manufacturers Instructions.. most say “Protect from Freezing n Over Heating “.. like in a trunk.
> 
> Sent from my iPhone
> 
>>> On Jan 19, 2022, at 10:28 AM, Dana Orzel <dana at solarwork.com> wrote:
>>> 
>> 
>> Hey All,
>>  
>> For those of us that live & work in freezing winter temps – What is the overall effect on LI tool batteries stored in a frozen truck overnight, needs to be used or charged & the battery is -15˚ to 32˚F?
>> I assume it’s the same as stationary LI batteries, though I have never seen a warning on the battery package or in the tool literature.
>>  
>> What are you all doing with work tool batteries in freezing  temps?
>>  
>> Are you taking the batteries inside to be warm & charge at night?
>>  
>> Thanks in advance!
>>  
>>  
>>  
>> Dana Orzel                              Great Solar Works, Inc.
>> C - 208.721.7003                       dana at solarwork.com
>> Idaho Contractor - # 028765         Idaho PV # 028374
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