MOTOMA POWER CO., LTD
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5.1 Testing conditions
The battery shall be evaluated within 1 month from the arrival date.
Unless otherwise stated in these specifications, the battery to be tested shall be stored for not
more than 1 hour at an ambient temperature of 20±5
℃
and relative humidity of 65±20%.
5.2 Charging procedure for test purpose
The battery shall be charged at an ambient temperature of 20±5
℃
at a constant current of
140mA
(0.1C) for 15 hours.
5.3 Terminal voltage (O.C.V)
Open circuit voltage shall be a minimum voltage of 1.25V within 14 days after being standard
charged.
5.4 Internal resistance
Within 1 hour after being standard charged, the internal resistance is not greater than
10m
Ω
,
as tested by 1000Hz AC source.
5.5 Discharging performance
TABLE I: Discharging performance at 20
℃
Constant Discharge
Current Rate
Constant Discharge
Current
End Point
Voltage
Discharge
Duration
Available
Capacity
3.0C
4.2A
0.8V
19min
95%
5.0C
7.0A
0.8V
10.8min
90%
10.0C
14.0A
0.8V
4.8min
80%
※
Note:
All the testing should be done within 1 hour after being standard charged.
5.6 Temperature characteristics
TABLE 2: Temperature Characteristics
Standard Charge
Temperature
Discharge
Temperature
Constant Discharge
Current
End Point
Voltage
Discharge
Duration
Available
Capacity
40
℃
20
℃
280mA
1.0V
210min
70%
20
℃
0
℃
280mA
1.0V
210min
70%
5.7 Charge retention
In the charge retention test, the cell shall be standard charged as
5.2
, and shall be stored in
open circuit for 28 days at 20±5
℃
(RH=65±20%), and the battery shall be discharged at the same
condition at a current of
280mA
to 1.0V, discharge time shall be a minimum of 180 minutes.
5.8
Overcharge
The test should be done within 1 hour after charged at a current of
140mA
for 48 hours, the battery
shall be discharged at 20
℃
, at a current of
280mA
to 1.0V, discharge time shall be a minimum of 300
minutes.
5.9
Endurance in cycles
