1. Description
1.1 Description: Round/Custom Li-Polymer Battery
1.2 Model: GMBT483533HV
2. Specification
2.1 Basic Performance
| No. | Item | Spec | Note |
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| 1 | Nominal Capacity | ≥550mAh@ 0.2C DischargeMin:530mAh | 0.2Crate,3.0V cut-off |
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| 2 | Nominal Voltage | 3.8V |
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| 3 | MAX Charge Voltage | 4.35V |
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| 4 | Discharge Cut-Off Voltage | 3.0 V |
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| 5 | Charge current | Standard charge: 0.2C Rapid charge: 0.5C |
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| 6 | Standard charging | 0.2C CC (constant current) charge to 4.35V, then 4.35V CV(constant voltage) |
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| charge till charge current decline to≤ |
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| 0.02C |
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| 7 | Discharge Current | Standard Discharge: 0.2C |
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| Max Discharge:0.5C |
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| 8 | Storage temperature | 1 month: -10~45℃ 6 month : -10~35℃ 20±5 ℃ is recommend long term storage temperature |
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9 | Weight | Approx: 12.0g |
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10 | Operating temperature | Charging : 0 ~+45 ℃,≤ 85%RH Discharge:-10~+60 ℃,≤ 85%RH | <0℃Charge shall be prohibited |
11 | Cell Voltage | 3.85 ~ 4.05V | As of shipment |
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3. Battery Cell Performance Criteria
3.1 Standard testing environment
Unless specifically stated otherwise, tests must be done within one month of delivery and the number of charging-recharging cycles is fewer than 5. The following is test conditions:
Test conditions:
Ambient Temperature: 23ºC ± 2ºC
Ambient Humidity: 65±20%RH
65±20%RH
4.2 Electrical Characteristics
NO | Item | Test Method | Criterion |
1 | Visual inspection | visual inspection | Not allowing any visual defects which will affect the electronic characteristics, such as leakage and damage. |
2 | Battery Dimension | Digital Calipers | Length:36.5mm Max Width:35.5mm Max Thickness:4.9mm Max |
3 | Initial Impedance | Internal resistance measured at AC 1KHz after 50-60% charge | ≤300mΩ |
4 | Rated Capacity 量 | The capacity means the discharge capacity of the cell, which is measured with discharge current of 0.2C with 3.0V cut-off voltage after the standard | ≥530mAh |
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5 | Cycle Life | Test condition: | The cycle times is not less than 300 |
Charge:0.2C to 4.35V |
Discharge:0.2C to 3.0V |
When the discharge capacity reduced to |
70% of rated capacity, Stop testing |
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6 | High Temperature | A charged battery is placed in an oven | Discharge 90 percent of the original capacity. |
for 2 hours at 55ºC±2ºC, then discharged at a 0.2C current to the termination voltage. |
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7 | Low | A charged battery is placed in a thermal | Discharge 60 percent of the |
chamber for 4 hours at -10ºC±2ºC; then |
discharged at 0.2C to the termination |
Temperature | voltage. | original capacity. |
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8 | Electricity maintenance | After the standard charging, storied the | Remaining capacity≥ 85% |
cells under the condition as 205 ºC for |
30days, then measured the capacity with 0.2C till 3.0V |
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4.3 Environment Characteristics 环境性能
NO | Item | Test Method | Criterion |
1 | Constant temperature and constant humidity test | After Standard Charging, test condition: Temperature:40±2℃ Relative Humidity:90~95%RH Storage Time:48 hours Then return to room temperature for 2 hours,Then 1C discharged to ending voltage | No explosion , no fire , no leakage.Dischargeing capacity is not less than 60% original capacity |
2 | Vibration test | After Standard Charging, fixed the cell | No explosion, no fire , no leakage |
to vibration table, then subjected to |
vibration test for 30 minutes per axis of |
XYZ axes. Frequency rate :1 oct/min |
Vibration frequency : 10Hz-30Hz |
Excursion(single amplitude): 0.38mm |
Vibration frequency : 30Hz-55Hz Excursion(single amplitude): 0.19mm |
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3 | Drop Test | A charged battery is dropped from a | No explosion, no fire, no leakage. |
height of 1 meter two times onto a concrete surface. |
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