The Samsung ICR18650-22P cell is top rating 18650 battery cells for those request high drain applications with 10A discharge current. In our cycle life testing, 3A charge 3A discharge capacity falls from 1940mah (because we apply 1A cut off charging model, which doesnot release the capacity in full) to 1440mah after 310cycles, say 1.6mAh per cycle drop in a stable manner, records falls more fast cause the charging current 3A is much higher then max current allowed (2.1A). Testing shows this is very good cell for fast charging/discharging high power application.
Nominal Specifications
- Typical Capacity: 2150mAh (0.2C, 2.75V discharge)
- Minimum Capacity: 2050mAh (0.2C, 2.75V discharge)
- Charging Voltage: 4.2V±0.05 V
- Nominal Voltage: 3.62V (1C discharge)
- Charging Method: CC-CV (constant voltage with limited current)
- Charging Current: Standard charge: 1075mA, Rapid charge: 2150mA
- Charging Time: Standard charge: 3hours, Rapid charge: 2.5hours
- Max. Charge Current: 2150mA
- Max. Discharge Current: 10A (Continuous discharge)
- Discharge Cut-off Voltage: 2.75V
- Cycle life: 500 cycles to 70% at 2150mA, 300 cycles to 80% at 4300mA
- Cell Weight: 44.5g max
- Cell Dimension: Diameter(max.): Ø 18.40 mm, Height : 65mm max
- Operating Temperature (Cell Surface temperature): Charge : -10 to 50°C, Discharge: -20 to 70°C
- Storage Temperature 1 year: -20~25°C, 3 months : -20~45°C, 1 month : -20~60°C
9. Safety
9.1 Overcharge Test
Test method: To charge the standard charged cell with 12V and 2150mA at 25℃
for 2.5 hours.
Criteria: No fire, and no explosion.
9.2 External Short-circuit Test
Test method: To short-circuit the standard charged cell by connecting positive and
negative terminal by less than 100mΩwire for 3 hours.
Criteria: No fire, and no explosion.
9.3 Reverse Charge Test
Test method: To charge reversely the standard charged cell with charge current
2150mA for 2.5 hours.
Criteria: No fire, and no explosion.
9.4 Heating Test
Test method: To heat the standard charged cell at heating rate of 5℃ per minute up to
130℃ and keep the cell in oven for 60 minutes.
Criteria: No fire, and no explosion.
lygte-info Capacity Testing
3A charging-Discharging Cycle Life Testing
Test begainning, 1936mAh at 3A charge/discharge, 1A cut off
test end, after 300cycles capacity 1450mAh.
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