Li-Ion Micro Batteries target Bluetooth and wireless applications.

Press Release Summary:

Enhancing Bluetooth®, wireless, wearable, industrial, and medical applications, CoinPower® Series rechargeable micro batteries support voltage level of 3.7 V and capacities of 50 mAh, 100 mAh, and 85 mAh. Included iLock system, together with 12.1–16.1 mm dia form factor, facilitates energy density optimization. Able to be recharged over 500 full cycles while maintaining at least 80% initial capacity, batteries offer low self-discharge and reliable signal transmission at high pulse loads.

Original Press Release:

VARTA Expands CoinPower® Li-Ion Micro Battery Series for Bluetooth and Wireless Applications

Rechargeable Button Cells Provide Unparalleled Reliability and Efficiency in Medical, Industrial and Wearable Electronics

Rye, NY ... The VARTA Microbattery/VARTA Storage group of companies, a global leader in the design, manufacturing and marketing of an extensive variety of high-technology rechargeable and primary batteries, today announced that its subsidiary,  VARTA Microbattery GmbH, has expanded the CoinPower® Series of lithium-ion rechargeable micro batteries to further enhance design flexibility, manufacturing efficiencies and cost effectiveness in Bluetooth, wireless, wearable, industrial and medical applications.   Now consisting of  CP 1254 A2, CP 1654 A2 and CP 1454 A3 parts, the series supports a voltage level of 3.7 V and capacities of 50 mAh, 100 mAh, and 85 mAh, respectively.  Devices boast six patents including the iLock system, which together with an efficient circular form factor, facilitates an energy density of up to 30% higher than any comparable micro battery now available.

The series features low self-discharge and reliable signal transmission at high pulse loads to ensure unparalleled dependability, an extended shelf life of more than one year, and a fast charge capability to provide hours of battery life in just 15 minutes of charging.  Additionally, these button cells may be recharged over 500 full cycles while maintaining at least 80% of their initial capacity.

VARTA's CoinPower Series of Li-ion rechargeable micro batteries meets the safety, reliability, size and weight requirements of a broad spectrum of applications, including stereo and mono Bluetooth headsets, notebook bridging, wearable fitness monitoring and training devices,  wireless sensor networks,  energy harvesting backup, and medical and healthcare equipment, e.g., including insulin pumps.  The series is also suitable for employment in smart watches, digital and analog watches, electronic games and car keys.

Button cells are provided in diameters ranging from 12.1 mm to 16.1 mm, and weigh from 1.6 g to 3.2 g.  All parts measure 5.4 mm high.  They use the CC/CV (constant current-constant voltage) charging method and exhibit virtually no swelling over lifetime due to their dent and scratch resistant stainless steel case.  The CP 1254 A2 and CP 1654 A2 cells are certified to IEC 62133 and UN 38.3 standards, whereas the CP 1454 A3 cells' certification is pending.

Firm pricing is determined according customers' specifications;  minimum order quantities start at 500 pieces.  Delivery is 8 to 12 week ARO.

To learn more about the ways in which VARTA's CoinPower Series of Li-ion coin cells are helping some of the industry’s smallest electronics run longer, please read Tiny Lithium Cells Power Ever Shrinking Wearable Devices., or contact

About VARTA Microbattery, Inc.

VARTA Microbattery, Inc. is the US sales organization of German-based VARTA Microbattery/VARTA Storage group of companies, which has roots dating back to 1887.  The Group is a global leader in the design, manufacturing and marketing of an extensive variety of batteries and energy storage products supporting long life under extreme operating conditions.  Their portfolio of rechargeable products includes Ni-MH, lithium button and cylindrical versions, while their primary products offering features button and cylindrical lithium, alkaline, zinc air, and silver oxide batteries. VARTA Microbattery's products are widely employed in a broad array of OEM and retail markets including automotive, medical, computing, hearing aid, industrial and communications.   From prototype to production quantities, VARTA Microbattery provides standard, modified-standard and custom battery solutions for virtually any application and equipment.  The Group further reinvests a substantial portion of its revenue in research and development to ensure VARTA continues its tradition of pioneering state-of-the-industry technologies.

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