NIMH AA1600mAh 4.8V Battery Pack
3C NIMH battery pack
,Medical Device NIMH battery pack
,4.8V NIMH battery pack
NIMH AA1600mAh 4.8V battery pack 3C discharge for medical device with UL IEC EN61951 certification.
1. Specification of the battery pack:
| Description | Unit | Specification | Condition |
| Nominal Voltage | V | 4.8 | Pack |
| Nominal Capacity | mAh | 1600 | Standard Charge/Discharge |
| Minimum Capacity | mAh | 1600 | Standard Charge/Discharge(0.1C charge,0.2C discharge) |
| Standard Charge | mA | 160(0.1C) | Ta=0~40℃ |
| hour | 16 | ||
| Fast Charge | mA | 320(0.2C)~800(0.5C)with charge termination control | -△V=5mV/cell Timer cutoff=110%input capacity Te. cutoff=40~45℃ dT/dt=0.8℃/min(0.5 to 1.0C); 0.8~1℃/min(1C) |
| hour | 7.0 approx.(0.2C) | ||
| 2.4 approx (0.5C) | |||
| Trickle Charge | mA | 48(0.03C)~80(0.05C) | Ta=0~40℃ |
| Discharge Cut-off Voltage | V | 4 | Pack |
| Maximum Discharging Current | A | 4.8(3C) | Ta =0~50℃ 3.2V cut off |
| Storage Teerature | ℃ -20~+35 * |
Open circuit voltage: ≥ 5V
Internal iedance(RI) : ≤250mΩ
High rate discharge(1c) : ≥54 min
2. Safety test
Over discharge: 0.1C charge for 48hrs No conspicuous deformation and/or leakage.
Charge reserve: Standard charge Storage: 28 days Standard discharge (0.2C) ≥180min
Humidity: Standard charged, stand for 10 days at 33±3℃ and 80±5% of relative humidity No leakage
External Short Circuit: After standard charge, short-circuit the cell at 20 ℃ ± 5 ℃ until the cell teerature returns to ambient teerature.(cross section of the wire or connector should bemore than 0.75mm2) No fire and no
explosion
Vibration Resistance: Charge of voltage should be under 0.08V/pack, change of iedance should be under20milli-ohm/cell.
Drop Test: △V<0.02V/cell △Ri<5%/cell Charge at 0.1C for 16hrs,and then leave for 24hrs,check battery before / after drop
