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
Height: 50 cm
Thickness of wooden board: 30mm
Direction is not specified
Test for 3 times
IEC Cycle Life Test: ≥500 cycle IEC61951-2(2003)7.4.1.1
3.Pics of battery pack
4. Q&a;A
Q: How to give the quality garantee?
A: We give 6m-1y garantee for our battery packs. As the faulty
allowance is less than 0.2%. For more we will give
replacement in the next order.
Q: How long will be the delivery date?
A: Normally one month if have cell stock 15-20days will be ready.
Q: How to start the cooperation?
A: You can take our sale and confirm the quality and packing
details. Then start to order from small order.
5. Wish 13years experience in battery area can help you out from
your project.
