
Li-Ion Battery Pack 18650 2900mah Battery Pack With High Quality
Li-Ion Battery Pack 18650 2900mah Battery Pack With High Quality
Item | Rating | Note | |
Cell | Type | Li-ion Battery | |
Cell Model | 18650-2900mAh | ||
Nominal Capacity | 2900mAh | Discharge : 0.2C
Cut-off Voltage: 2.5V |
|
Minimum Capacity | 2750mAh | Discharge : 0.2C
Cut-off Voltage: 2.5V |
|
Nominal voltage | 3.7V | ||
Internal Impedance | ≤60mΩ | ||
Dimension | Max. 18.5*65mm | ||
Weight | Approx.50g | ||
Battery Pack | Pack Method | 4S9P | |
Nominal Capacity | 26.1Ah | Discharge : 0.2C
Cut-off Voltage:10V |
|
Minimum Capacity | 24.3Ah | Discharge : 0.2C
Cut-off Voltage: 10V |
|
Nominal Voltage | 14.4V | ||
Charge Voltage | 16.8V | ||
Discharge cut-off voltage | 10V | ||
Charge Method | CC/CV | ||
Standard Charge Current | 0.16A | 0.2C | |
Max. Charge Current | 10A | ||
Standard Discharge Current | 5.22A | 0.2C | |
Max. Continues Discharge current | 10A | ||
Cycle Life | 300 times(week) | 80% | |
Internal Impedance | 200mΩ | ||
Dimension | L168* W78*T73mm | MAX | |
Weight | Approx.1.8kg | ||
Working Temperature Range | Charge: -20°C–50°C
Discharge: -20°C–50°C |
||
Storage Temperature | -10°C–45°C |
Development of the battery began in 2012, when Chiang joined the Department of Energy’s Joint Center for Energy Storage Research, a five-year project that brought together about 180 researchers to collaborate on energy-saving technologies. Chiang, for his part, focused on developing an efficient battery that could reduce the cost of grid-scale energy storage.
A major issue with batteries over the past several decades, Chiang says, has been a focus on synthesizing materials that offer greater energy density but are very expensive. The most widely used materials in lithium-ion batteries for cellphones, for instance, have a cost of about $100 for each kilowatt hour of energy stored.
“This meant maybe we weren’t focusing on the right thing, with an ever-increasing chemical cost in pursuit of high energy-density,” Chiang says. He brought the issue to other MIT researchers. “We said, ‘If we want energy storage at the terawatt scale, we have to use truly abundant materials.’”