Ni-Cd batteries from Panasonic operate from -40°C to 60°C

In extreme low temperatures which is common during winter season in the regions near the North Pole and South Pole, rechargeable batteries fail to work to full capacity. To solve this problem, Panasonic has developed Nickel Cadmium (Ni-Cd) rechargeable battery which can work at low temperatures down to -40°C (-40°F). The new Panasonic Cadnica GT Series batteries are designed to operate at a wide range of temperatures, from extreme cold temperatures of -40°C to high-temperature of 60°C (140°F). Panasonic to ship samples of the new Cadnica batteries in August 2013. Mass-production will begin in the next fiscal year starting April 2014 with a monthly production of one million pieces.

Panasonic's new Cadnica GT Series use newly-developed electrolyte management technology and high-performance negative electrode, the batteries can charge and discharge in a low-temperature environment of -40°C.

Cadnica GT Series batteries are going to be offered in three sizes: SC, C ad D. Other applications of the new batteries include the use for equipment designed for cold-weather regions such as radio devices, measuring instruments, mountain-climbing equipment and ship lights; and backup power source used outdoors such as disaster lighting systems and emergency lighting for tunnels.