Original
By certification 
Feature:
1. Model Name:IFM12.8V-21AH-E2
2. Rated Capacity:21Ah,
Minimal rated capacity:20.3Ah
Nominal voltage:12.8V
3. The size:max 75mm(T)*124mm(W)*202mm(L)
Specifcation:
No. |
Item |
General Parameter |
Remark |
1 |
Rated Capacity |
21Ah |
Standard discharge(0.2 C5)after standard charge(0.2 C5) |
2 |
Minimal Rated Capacity |
20.3Ah |
|
3 |
Nominal Voltage |
12.8V |
|
4 |
Cycle Life |
Higher than 60% of the Initial Capacity of the Cells |
◆Charge:CC@0.2C to 14.6V, then CV till current to 0.05C |
5 |
Discharge cut-off voltage |
10.0V |
10.0V( recommended) |
6 |
Charging cut-off voltage |
14.6V |
14.6V (recommended) |
7 |
Cell and assembly method |
IFR26650EC-3.3AH |
4S7P |
8 |
Housing material |
PVC |
|
9 |
Standard charge |
0.2C constant current(CC) charge to 14.6V,then constant voltage (CC)14.6V charge till charge current decline to ≤0.05C |
Charge time : Approx 7h |
10 |
Standard discharge |
Constant current 0.2C |
|
11 |
Maximum Charge Current |
10A |
|
12 |
Continuous Discharge Current |
10A |
|
13 |
Operation Temperature Range |
Charge: 0~45℃ |
60±25%R.H. |
Discharge(: -10~60℃ | |||
14 |
Storage Temperature Range |
Less than 1 year : 0~25℃ |
60±25%R.H. |
Less than 3 months:-5~35℃ | |||
15 |
Weight |
Approx:2.7Kg |
|
16 |
Max.Dimension |
Height:75mm |
|
Width: 124mm | |||
Length: 202mm |
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