Panasonic has unveiled its pin sized nano batteries which is tailor-made for wearable. The CG-320 lithium-ion battery is 20 mm long and has a diameter of 3.5 mm and a nominal capacity of 13mAH. The batteries are best suited for applications such as wearable computers and hearing aids. It is a welcome development since the power guzzling wearable can become more miniaturized.
Power-sipping wearable devices could become smaller with a new rechargeable battery from Panasonic. Panasonic announced on Friday its pin shaped lithium ion battery which is just 20 mm long and has a diameter of 3.5 mm. It is 1/20th the size of an average AAA battery. It also happens to be the smallest in the industry in terms of capacity by volume.
The CG-320 battery will have a capacity of 13 mAh and voltage of 3.75 V. This will enable the smooth working of NFC and Bluetooth with smartphones. The compact size and negligible weight makes it perfect for wearable devices such as smart glasses, fitness bands, hearing aids and electronic pens. Compact batteries will surely shrink the size of wearable but the usability and interfaces will finally decide how big they are!
A spokeswoman for Panasonic wrote in an email, “The size, which is the smallest of its kind in the industry, can allow more flexible product design, and high strength and stability of form delivers high reliability.”
The nano batteries will shrink the size of wearable and so also used in Internet of Things or IoT. The CG-320 capacity is lower than the wearable batteries such as Jawbone UP24 activity monitor’s 32 mAh lithium-ion polymer battery but its size is much smaller than the latter. Panasonic is also in the process of developing two more pin shaped batteries with the capacities of 30mAh and 50mAh. They will be larger and heavier.
Battery size and power are key factors which determine the size of wearable. Wearable like the Apple Watch for instance will require a daily recharge and this can hamper efforts to miniaturize the device. Efforts are on to find out new materials and control systems for wearable batteries.