25.9V 36.4AH Manpack Jammer Battery

4.2

Nominal voltage

25.9V

Transportation voltage

26.2--29.0V

4.3

Charge current

Standard Charge ：5A
Rapid charge ：10A

4.4

Standard Charging method

0.5C CC( constant current )charge to 29.4V,then CV(constant voltage 29.4V)charge till charge current decline to ≤300mA

4.5

Charging time

Standard Charging Approx 8 hours Rapid charge
Approx 4 hours

4.6

Max. charge current

≤20A

4.7

Max. discharge current

≤40A

4.8

Standard Discharge Current

≤20A

4.9

Discharge protect voltage

19.6±0.05V

4.10

Charge protect Voltage

29.75±0.05V

4.11

Initial Impedance

≤160mW

4.12

Weight

Approx：5.2kg

4.13

Operating temperature

Charging ： -20℃~ 60℃ Discharging  ： -20℃~60℃

4.14

Storage temperature

-20℃~60℃

≤1 month

Battery capacity with 60%

-20℃~45℃

≤3 month

-20℃~25℃

≤1 year

4.15

Storage Humidity

≤75% RH

4.16

Appearance

Without scratch, distortion, contamination and leakage
Rusting

4.17

Standard environmental condition

Temperature ： 23±5℃
Humidity:45-85%RH Atmospheric Pressure ： 86-106 Kpa

4.18

Charger terminal voltage request

29.4V

5.1

0.2C Capacity

After   standard   charging,   rest   battery   for  10min,  then  discharging   at   0.2C    to   voltage  19.25V,    recording   the

≥300min

discharging time.

5.2

1C Capacity 1C

After standard charging, rest battery for 10min, then discharging at 1C to voltage 19.25V, recording the discharging Capacity

≥60min

5.3

Cycle Life

Constant current 0.5C charge to 29.4V, then constant voltage charge to current declines to 300mA, rest 10min , constant current 0.5C discharge to 19.25V , rest 10min. Repeat above steps till continuously discharging capacity Higher than 80%  of the Initial Capacities of the Cells

≥300 times

5.4

Capability of keeping electricity

25 ± 5 ℃ , Constant current 0.5C charge to 27.3V, then constant voltage charge to current cut-off to 300mA,rest 28 days

Variation of Impedance
     ＜5 mΩ
     Variation of Voltage
     ＜0.1V

6.1

Short-circuit testing

At 23 ± 5 ℃ , After standard charging, connect   cells anode and cathode by wire  which impedance less than  50m Ω, keep 6h.

battery No broken, no smoke, no fire, no leakage(The project is not applicable)

6.2

Overcharge testing

After standard charging, 1.2C current and 35.0V voltage charge for 8 hours ,the voltage of battery  should keep at 30.10±0.05V.

6.3

Over discharge testing

At 23 ± 5 ℃ ,  According to the requirements  of  standard charge,the cells will be discharge to cut-off voltage, then connect with external load of 30 ohm for 24 hours.

7.1

Temperature   test

Fully charged at 25  ℃, use 1C   discharge current to measure

the capacity at different temperatures by cut-off voltage 19.25V. take   the capacity at 25  ℃ as standard 100%

25% (at) -20℃

60% (at) 0℃

96% (at) 60℃

7.3

Vibration test

Vibrate   the battery in three mutually perpendicular directions by the amplitude of   0.35mm, the vibration frequency of 10-55HZ in 10 times each, the frequency   changing rate is 1HZ per minute.

 battery No broken, no smoke,no fire, no leakage.