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Lithium CR2440 button cell battery is a non-rechargeable button/coin cell battery, based on the manganese-dioxide lithium chemistry, featuring a nominal voltage of 3.0 volts. Lithium CR2440 battery is a very popular battery, commonly used in car keys, remote devices, toys, calculators, digital watches, wireless doorbell for the house, digital thermometers, digital altimeter, heart rate monitors, as CMOS battery and similar.
規格
| モデル | Nominal Voltage (V) | 公称容量（mAh） | 公称電流（mA） | Maximum Continuous Current (mA) | Maximum Pluse Current (mA) | 最大寸法（mm） | 重量（g） |
| CR920 | 3 | 20 | 0.1 | 1 | 5 | Φ9.5X2.0 | 0.55 |
| CR927 | 3 | 28 | 0.1 | 1 | 5 | Φ9.5X2.7 | 0.6 |
| CR1025 | 3 | 30 | 0.1 | 2 | 5 | Φ10.0X2.5 | 0.7 |
| CR1216 | 3 | 25 | 0.1 | 2 | 5 | Φ12.5X1.6 | 0.7 |
| CR1220 | 3 | 38 | 0.1 | 2 | 5 | Φ12.5X2.0 | 0.8 |
| CR1225 | 3 | 50 | 0.1 | 2 | 5 | Φ12.5X2.5 | 0.9 |
| CR1616 | 3 | 50 | 0.1 | 3 | 8 | Φ16.0X16 | 1.2 |
| CR1620 | 3 | 70 | 0.1 | 3 | 8 | Φ16.0X2.0 | 1.3 |
| CR1632 | 3 | 120 | 0.2 | 3 | 8 | Φ16.0X3.2 | 2 |
| CR2016 | 3 | 80 | 0.1 | 5 | 15 | Φ20.0X1.6 | 2 |
| CR2020 | 3 | 120 | 0.1 | 5 | 15 | Φ20.0X2.0 | 2.2 |
| CR2025 | 3 | 150 | 0.2 | 5 | 15 | Φ20.0X2.5 | 2.6 |
| CR2032 | 3 | 220 | 0.2 | 5 | 15 | Φ20.0X3.2 | 3.2 |
| CR2050 | 3 | 330 | 0.4 | 5 | 15 | Φ20.0X5.0 | 4.7 |
| CR2320 | 3 | 130 | 2 | 6 | 20 | Φ23.0X2.0 | 3 |
| CR2325 | 3 | 190 | 2 | 6 | 20 | Φ23.0X2.5 | 3.3 |
| CR2330 | 3 | 260 | 2 | 6 | 20 | Φ23.0X3.0 | 4 |
| CR2335 | 3 | 300 | 2 | 6 | 20 | Φ23.0X3.5 | 4.3 |
| CR2354 | 3 | 560 | 0.4 | 6 | 20 | Φ23.0X5.4 | 6.9 |
| CR2430 | 3 | 270 | 0.2 | 7 | 25 | Φ24.5X3.0 | 4.5 |
| CR2440 | 3 | 480 | 0.4 | 7 | 25 | Φ24.5X4.0 | 5.4 |
| CR2450 | 3 | 600 | 0.4 | 7 | 25 | Φ24.5X5.0 | 6.8 |
| CR2477 | 3 | 1000 | 0.6 | 7 | 25 | Φ24.5X7.7 | 10.5 |
| CR3032 | 3 | 500 | 0.4 | 10 | 30 | Φ30.0X3.2 | 6.8 |
| CR3832C | 3 | 850 | 0.8 | 20 | 75 | Φ38.0X3.2 | 11 |
Characteristic of CR2440 Lithium Button Cell
A 3V cell, about twice the voltage of a dry cell, with space-saving and lightweight.
長時間放電時においても安定した電圧特性を維持します。.
Unique encapsulation technology achieves low self-discharge, annually less than 2%.