NiMH Rechargeable Battery SC 2400mAH 14.4V

2020-08-10 06:20

SC 14.4v 2400mah rechargeable nimh battery

Product Name AA 2500mah 1.2V NI-MH rechargeable power battery
Size AA
Capacity 2500mAh
Voltage 1.2V
Chemical SystemNickel–metal hydride battery
Cycle Life 500-1000times
JacketPVC
CertificationsCE ROHS SGS MSDS
Standard charging current0.1A for 16 hours
Standard discharging current  0.2A
Charging temperature  0 to 45 degree Celsius
Discharging temperature  -20 to 60 degree Celsius

Tests should be done within one month of receiving the goods under the following conditions.

Test condition:

Temperature:20±5℃
Relative Humidity:65±20%
Atmospheric Pressure:86~106kPa
Standard charge discharge specification
Discharge: 6000mA (1C) to 12.0V
Charge: 6000mA (1C)×1hrs,1200mA (0.2C)×1hrs
Discharge: 6000mA (1C) to 12.0V

No
Test
Unit
Description
Condition
Note
1
Open circuit voltage
V
≥15
Within 1h after charging
2
Internal resistance
≤32
50%SOC
3
Internal Impedance
≤13.8
1kHz
4
Self -discharge rate
%
<18
55±2℃ rest 3days,    20±2℃ rest 7days
5
Energy Efficiency
%
≥85
25℃
6
Volumetric Efficiency
%
>95
25℃
7
Cycle Life
Week
>3000
80%DOD
Charge to 90%,      discharge to 10%
Related NiMH Battery
MANDATORY TEST
No.
Battery parameters
Test Method
Standard
1
Appearance
Visually check the appearance of the battery under good light conditions.
Neatly arranged, reliable and clearly marked.Free from cracks,scars.
2
Vibration Resistance

Fixed the battery module to the vibration test stand, Perform a linear scan vibration test according to the following conditions:

——Direction of vibration: single vibration ups and down;
——Vibration frequency: 10Hz~55 Hz;
——Max Acceleration: 30m/s2;
——Vibration Time: 3h
No deformation and no leakage
3
Over discharge Test
1.  Charge according to standard charging method;
2. Discharge with 6A current
(If there is an electronic protective line, the discharge electronic protection line shall be removed temporarily)discharge 90min;
Observe 1h.
No explosion, no catching fire, or no leakage.
4
Overcharge Test
1.  Charge by standard charging method;
2. Charge 1H with 6A current;
3. Observe 1h.
No explosion or no catching fire.
5
Short-circuit Test
1. Charge by standard charging method;
2. External Short-circuit the battery 10min, and the external line resistance should be less than5mΩ;
3. Observe 1h.
No explosion or no catching fire.
6
Heating Test
1.  Charge by standard charging method;
2. The temperature chamber is heated from room temperature to 85 + 2 DEG C at a rate of 5/min, and the heating is stopped after 2h;
3. Observe 1h.
No explosion or no catching fire.
7
Extrusion Test
1. Charge by standard charging method;
2. Extrusion direction: perpendicularly pressure to the battery monomer arrangement direction
3.  Extrusion plate form:The radius of the 75mm half cylinder, the length of the semi cylinder (L) is greater than the size of the extruded battery;
4. Extrusion speed: (5±1)mm/s;
5. Extrusion degree: the voltage reaches 0V or the deformation amount reaches 30%, or the extrusion pressure reaches 200KN, then stop extruding;
6. Observe 1h.
No explosion or no catching fire.
8
Acupuncture Test
1. Charge by standard charging method;
2.  With high temperature resistant steel than 6mm ~ 10mm in diameter (tip cone angle of 45 degrees to 60 degrees, smooth surface, needle without rust, oxide layer and oil), with 25 + 5mm/s speed, from the vertical to the battery plate direction, turn through at least 3 monomer;
3. Observe 1h.
No explosion or no catching fire.

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