1 Standard Test Conditions
Test should be conducted with new batteries within one month after shipment from our factory and the cells shall not be cycled more than five times before the test. Unless otherwise defined, test stated in this specification should be conducted at temperature of 25±2℃, humidity 45~85% and Test should be performed under atmospheric conditions with 86KPa~106KPa pressure.
2 Measuring Equipment
2.1 Dimension Measuring Instrument
The dimension measurement shall be implemented by instruments with equal or more precision scale of 0.01mm.
Standard class specified in the national standard or more sensitive class having inner impedance more than 10 MΩ
2.3 Impedance Meter
Impedance shall be measured by a sinusoidal alternating current method (1kHz LCR meter).
3 Standard Charge
The standard charge means charging the cell with charge current 0.5CA and constant voltage 3.65V at (25±2)℃, 0.05CA cutoff.
4 Quick Charge
The standard charge means charging the cell with charge current 1.0CA and constant voltage 3.65V at (25±2)℃, 0.05CA cutoff.
5 Standard Discharge
The standard charge means discharging the cell with charge current 0.5CA with 3.65V cutoff at (25±2)℃.
Battery for shipping should be packed in boxes with the condition of half charged. The Violent vibration, impact extrusion, sun and rain should be prevented during shipping. The battery is suitable for cars, trains, ships, aircraft and other transportation vehicles.
Storage and other matters
1 Long-term storage
Batteries should be stored (more than 1 month) indoor with a dry and clean environment at 0 ℃~35 ℃. Avoiding contact with corrosive substances and staying away from fire and heat source. The battery should be charged and discharged every 6 months. The voltage for storage is between 3.20~3.31 V (30 ~ 50% SOC).
2 Other business
Any matters not mentioned in this specification, shall be negotiated by both parties.
Handling of Cells
1.1 Charging current
Charging current shall not exceed the maximum charging current in this specification. Otherwise it would cause the problem in charge and discharge performance, mechanical performance and safety performance.
1.2 Charging voltage
Charging voltage shall not exceed the maximum charging current in this specification. Otherwise it would cause the problem in charge and discharge performance, mechanical performance and safety performance.
1.3 Charging temperature
Batteries must be charged within the t ambient temperature range of 0 ℃~45 ℃.
1.4 Forbidding reverse charge
Battery should be connected correctly. It is strictly prohibited to reverse charge. Otherwise it will cause the battery scrap and produce safe hidden trouble.
2.1 Discharging current
Discharge current shall not exceed the maximum charging current in this specification; Otherwise it would cause dramatically capacity loss and overheating.
2.2 Discharge temperature
Batteries must be discharge within the ambient temperature range of -20 ℃~55 ℃.
2.3 Forbidding over-discharge
Battery management system should be installed to prevent over discharge during the usage. Over discharge will cause the battery scrap and produce safety hazard. It is necessary to state that for the battery not used for a long time, it may over discharge due to the self-discharge characteristics. To prevent the occurrence of over discharge, the battery should be regularly charge and the voltage should be remained above 3.2 V.
3.1 Polishing the pole with abrasive paper before use, otherwise it would cause bad contact or failure.
3.2 It is recommended to use copper connector to connect the battery.
3.3 Using the specific tools, such as spanner, to connect the battery.
4 Announce ment
Failure to observe the following precautions may result in battery leakage, overheating, explosion and/ or fire.