[ Problem Point ]
The performance of the battery did not come out but it was troubled by the temperature near the freezing point of winter.
[ ⇒Kaizen Point ]
It warmed by the Super Infrared Heater of temperature up at the moment.
Since the temperature of the battery went up for a short time, the performance of the battery has been demonstrated.
The performance test was done normally.
Related page:
No.97 Temperature performance evaluation test of the rechargeable battery 
No.13 Heating and keeping warm of wire harness 
No.10 Keeping warm storage of foods 
No.1 Temperature performance evaluation test of the rechargeable battery 
No.8 Heating unit for drying booth 
No.15 Heating of the LCD cover glass 
No.35 Keeping warm of food 
No.3 Dryness of a silk print