Reminds me of this. Maybe you can do something similar?
Not sure if some insulation might help with your low temps?
Have you checked that the battery voltages are the same?
I was looking at using 18650’s for something but the voltage was too high…
Reminds me of this. Maybe you can do something similar?
Not sure if some insulation might help with your low temps?
Have you checked that the battery voltages are the same?
I was looking at using 18650’s for something but the voltage was too high…