Li-Ion Rechargeable Micro Batteries Target Bluetooth, Portable and Wearable Devices

VARTA Microbattery, a global leader in the design, manufacturing and marketing of an extensive variety of high-technology rechargeable and primary batteries, released the CoinPower^®  Series of lithium-ion rechargeable micro batteries.   Optimized to promote cost effective manufacturing efficiencies and design flexibility in Bluetooth, portable and wearable technology applications, the lightweight series’ energy density is up to 30% higher than comparable products.  The series is comprised of CP 1254 and CP 1654 parts, which feature a voltage level of 3.7 V and capacities of 50 mAh and 100 mAh, respectively. The series additionally boasts low impedance, an extended shelf life of more than one year, and fast charge capability. VARTA exhibited the CoinPower Series at the WT | Wearable Technologies Conference 2015 USA in San Francisco on July 9-10.

“VARTA is pleased to offer the lightweight, CoinPower Series of Li-ion rechargeable micro batteries,” stated Philipp Miehlich, General Manager of  VARTA Microbattery GmbH. “VARTA precision-engineered this reliable, low total cost battery solution to provide exceptional performance in the widest range of Bluetooth portable and wearable technology devices.  The cells feature multiple patented technical innovations, which support higher energy density, extended life and best-in-class mechanical stability.  Our customer are using the advanced capabilities of CoinPower in Bluetooth, medical, health, fitness, automotive and wireless sensor applications.”

Certified to IEC 62133/UL 1642 safety standards, VARTA’s CoinPower Series of Li-ion rechargeable micro batteries is ideally suited for employment in medical, e-health, portable devices, energy harvesting, wireless sensor networks, automotive security and pharmaceutical applications.  They are frequently specified in Bluetooth chipsets, smartwatches, digital and analog watches, fitness devices, electronic games, car keys, MP3 players and insulin pumps.

Featuring superior drain capability (CP 1654 up to 500 mA continuous), CoinPower cells may be recharged over 500 full cycles, maintaining at least 90% of their initial capacity.  The CP 1254 cells weigh 1.6 g and measure 12.1 mm in diameter, while the CP 1654 cells weigh 3.2 g and have a diameter of a 16.1 mm.  Both parts are 5.4 mm high.  The cells use the CC/CV (constant current-constant voltage) charging method and exhibit virtually no swelling due to their scratch-resistant stainless steel enclosure.