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63094

Product catalog summary

Type Designation and Specifications
The CoinPower® CP 9440 A3 is a lithium-ion battery with a type number of 63094 and cell code ICR9440. It operates on a graphite-layered metal oxide system (LiNixMnyCozO2) and has UL recognition under MH13654. The nominal voltage is 3.7V, with a typical capacity of 25mAh at 0.2C from 4.2V to 3.0V at 20°C.

Dimensions and Weight
The battery has a diameter of 9.4mm and a height of 4.0mm, with a weight of approximately 0.8g.

Charging and Discharging
The charging method is constant current plus constant voltage, with a charge voltage of 4.20 ± 0.05V. Initial charge current is 12.5mA for standard charge and 25mA for fast charge. Charging cut-off can be by time (5 hours for standard, 3 hours for fast) or by minimum current (0.5mA). The discharge cut-off voltage is 3.0V, with a maximum pulse discharge current of 50mA for 2 seconds and a maximum continuous discharge current of 25mA.

Temperature and Storage
Operating temperature ranges from 0 to 45°C for charging and -20 to 60°C for discharging. Storage temperature allows for a capacity recovery rate of over 90% for 1 year at -20 to 20°C, over 90% for 3 months at -20 to 45°C, and over 85% for 1 month at -20 to 60°C.

Impedance and Cycle Life
Initial impedance is less than 0.7Ω at 1kHz. The cycle life is over 500 cycles at 0.5C/0.2C, 20°C, maintaining more than 85% of initial capacity.

Safety and Compliance
The battery has passed UN 38.3 and relevant tests according to IEC 62133. It must not be used without external safety electronics (PCM) and is intended for specific purposes only. For medical applications, contact VARTA Microbattery. The product is protected by multiple patents.

Catalog excerpts

Data Sheet CoinPower® CP 9440 A3 Data Sheet - CP 9440 A3 (CoinPower®)1 Type Designation Type Number Cell Code System UL Recognition Nominal Voltage [V] 3.7 (average) Typical Capacity C [mAh] 25 (at 0.2C from 4.2 V to 3.0 V at 20 °C) Constant Current + Constant Voltage 4.20 ± 0.05 Standard Charge: 12.5 Fast Charge2: 25 Charging Cut-Off (a) or (b) a) by time [h] b) by min current [mA] Discharge Cut-Off Voltage [V] Max. Pulse Discharge Current [mA] Max. Continuous Discharge Current [mA] Operating Temperature [°C] Storage Temperature Capacity Recovery Rate3 [%] Impedance Initial [Q] Cycle Life 0.5C/0.2C, 20 °C4 [Cycles] UN 38.3 passed relevant tests acc. IEC 62133 passed 1 Recommendations regarding Charging/Discharging and Safety (cf. Handling Precautions/Advanced Product Information) have to be accepted. Cell must not be used without external safety electronics (PCM - Protection Circuit Module)! The CoinPower cell may exclusively be used for the intended purpose. For medical applications please contact VARTA Microbattery. This product is protected by at least one of the following patents: US 6066184 A,US 9178251 B2,US 9231281 B2,US 8586232 B2,US 9153835 B2,CN 102318122 B,CN 102804473 B,EP 2628203 B1,EP 2443691 B1,EP 2415101 B1,EP 2394324 B1,JP 5767115 B2,DE 19647593 B4. 2 Min. charging temperature: 15°C. 3 After storage at initial cell voltage of 3.6 to 3.7 V / cell 4 typical values Subject to change without prior notice!

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