MOTOMA POWER CO., LTD
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E-mail: [email protected]
Manufacturer reserves the right to alter or amend the design, model and specification without prior notice.
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Prior to the endurance in cycles test, the battery shall be discharged at
140mA
to 1.0V. The
battery shall be capable of 500 minimum cycles under the conditions as follows.
TABLE 3: Cycle Life Test
Cycle
Charge
Rest
Discharge
1
0.1C for 16hours
none
0.25C×140mins
2-48
0.25C for 190minutes
none
0.25C×140mins
49
0.25C for 190minutes
none
0.25C to1.0V/ cell
50
0.1C for 16hours
1-4hr(s)
0.2C to 1.0V/cell
Cycles 1 to 50 shall be repeated until the discharge time on any 50th cycle becomes less than 3 hours. At
this stage, repeat 50th cycle, if the discharge time is less than 3 hours again the test is terminated.
※
Note:
If battery unit voltage drops below 1.0V, discharge shall be discontinued.
5.10 Safety
5.10.1 Continuous low-rate charging
After standard charged, charge battery at
42mA~70mA
for 28 days, no fire or no explosion.
5.10.2 Forced discharge
The discharged battery is subjected to a reverse charge at
1400mA
for 90 minutes, no fire or
explode.
5.11 Vibration
The battery shall be no fire, leakage or explode, when it is tested under the following
conditions after being standard charged.
TABLE 4: Vibration Test Conditions
Frequency
10~55Hz
Amplitude
0.76mm
Rate of frequency variety
1 Hz/minute
Duration
90 minutes /axis (axis: X,Y,Z) 270 minutes in all
5.12 Short Circuit
After standard charged, short the battery until the battery’s temperature returns to ambient
temperature (20±5
℃
), no fire or no explosion. (Cross section of the wire or connector should be
more than 0.75mm
2
)
5.13 Impact Resistance
After standard charged, leave the battery for 24hrs, then check it before / after the following
test: Change of voltage:
ΔV < 0.02V/cell; Change of internal Impedance: ΔRi < 5 %/cell.
TABLE 5: Impact Resistance Test Conditions
Standard Charged Drop Height Thickness of wooden board
Direction
Test Times
0.1C for 16hrs
50 cm
30mm
Not specified
3
5.14 Leakage
