| Battery Type: NiMH | Size: 9V | Nominal Voltage: 9V | Ni-MH batteries: Ni-MH batteries |
1. APPLICATION
This specification applies to the Ni-MH batteries
Model : 120H7D
2. CELL AND TYPE
2.1 Cell : Sealed Ni-MH Button Cell
2.2 Type : Button type
2.3 Size type : 8.4V
3. RATINGS
3.1 Nominal voltage : 8.4V
3.2 Nominal capacity : 160mAh
3.3 Typical weight : 45g
3.4 Standard charge : 16mA×14hours
3.5 Rapid charge : 32mA×6hours
Trickle current : 4.8mA
3.6 Discharge cut-off voltage: 7.0V
3.7 Temperature range for operation (Humidity: Max.85%)
Standard charge 0 ~ +45
Rapid charge +10 ~ +45
Trickle charge 0 ~ +45
Discharge -10 ~ +45
3.8 Temperature range for storage (Humidity: Max.85%)
Within 2 years -20 ~ +35
Within 6 months -20 ~ +45
Within a month -20 ~ +45
Within a week -20 ~ +55
4. ASSEMBLY & DIMENSIONS
Per attached drawing
5. PERFORMANCE
5.1 TEST CONDITIONS
The test is carried out with new batteries (within a month after delivery)
ambient conditions
Temperature: +25 ± 5
Humidity: 60 ± 20%
Note 1
Standard charge : 16mA×14hours
Standard discharge : 32mA to 7.0V
5.2 TEST METHOD & PERFORMANCE
Test | Unit | Specification | Conditions | Remarks |
Capacity | mAh | ≥160 | Standard Charge/discharge | Up to 3 cycles Are allowed |
Open Circuit Voltage (OCV) | Voltage (V) | ≥9.1 | After 1 hour standard Charge | |
Internal Impedance | mΩ/cell | ≤800 | Upon fully charge (1KHz) | |
High rate Discharge (80 mA) | Minute | ≥60 | Standard charge Before discharge | |
Discharge Current | mA | 80 | Maximum continuous Discharge current | |
Over charge |
| No leakage Not explosion | 4.8mA charge one year | |
Charge Retention | mAh | 128 | Standard charge; Storage: 28 days; Standard discharge | |
Cycle Life | Cycle | ≥400 | IEC/CEI61951-2:2001. 4.4 | |
Leakage |
| No leakage nor Deformation | Fully charge at 16mA, Stand 14 days |
Note 2 IEC/CEI61951-2:2001. 4.4 cycle life
Cycle number | Charge | Stand in charged Condition | Discharge |
1 | 16mA for 16h | None | 40mA for 2h20min |
2-48 | 40mA for 3h10min | None | 40mA for 2h20min |
49 | 40mA for 3h10min | None | 40mA to 1.0V/cell |
50 | 16mA for 16h | 1h to 4h | 32mA to 1.0V/cell |
1.Befor the endurance in cycles test, the cell shall be discharged at 32mA to a final voltage of 1.0V/cell. 2.The following endurance test shall then be carried out, in an ambient temperature of 20±5. | |||
5.3 Humidity
The battery shall not leak during the 14 days which it is submitted to the condition
of a temperature of 33±3 and a relative humidity of 80±5%.
6. OTHERS
6.1 We recommend you to set the cut-off voltage at 1.0V/cell.
6.2 If the cut-off voltage is above 1.1V/cell, the battery may be underutilized resulting
insufficient use of the available capacity.
6.3 If it is below 1.0V/cell, the battery may have discharge or reverse charge to the cell.
7. PRECAUTION
The cells shall be delivered in charged condition. Before testing or using, the cell shall be
discharged at 20±5 at a constant current of 32mA to a final voltage of 1.0V/cell.
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9V Ni-MH BUTTON CELL
