551429 Polymer 3.7 V Lithium Battery 420mah For Epidemic Prevention Equipment
| Place of Origin: | CHINA |
|---|---|
| Brand Name: | HB |
| Certification: | ROHS |
| Model Number: | 551429-420mAh |
| Minimum Order Quantity: | Contact sales to get |
| Price: | Contact sales to get |
| Packaging Details: | Contact sales to get |
| Delivery Time: | Contact sales to get |
| Payment Terms: | T/T |
| Supply Ability: | Contact sales to get |
| NominalVoltage: | 3.7V | NominalCapacity: | 420mAh |
|---|---|---|---|
| Warranty: | 1Year | CycleLife: | 300Times |
| StandardDischargeCurrent: | 0.2C | 1 | 1 | StandardChargeCurrent: | 0.2C |
| HighLight: | lithiumternarybattery,rechargeablelithiumbatteries |
551429 polymer lithium battery 420mAh Epidemic prevention equipment battery 3.7V
Lithium Polymer Battery Advantages
1. Safe And Reliable
2. Quality Assurance
3. Price Concessions
4. Long cycle life
5. High energy density
6. No memory effect
7. Environmental protection (not Contain Cadmium, Lead, Mercury)
8. One year warranty
Size and capacity can be customized according to your requirements!
Mainly used in GPS, MP4, watches, earphones and other digital production, etc.
1. Technical Parameters
| Items | Rated Performance | Remarks |
| Nominal Capacity | 420mAh |
Discharge at 0.2C after standard charge fully |
| Nominal Voltage | 3.70V | |
|
End-of-Voltage at end of Discharge |
2.75V | |
|
End-of-Charging Voltage |
4.25V | |
| AC Impedance | ≤100 mΩ | AC 1KHz |
| Standard Charge | 0.5C CC/CV→4.25V 0.05Ccutoff | Charge time: Approx 2.5h. |
| Standard Discharge | 0.2C CC→2.75V cutoff | |
| Fast Charge | 0.21A →0.05C cut off | Charge time: Approx 1h. |
| Fast Discharge | 0.21A→7.5V cutoff | |
| Maximum Continuous Charge Current | 0.1A | |
| Maximum Continuous Discharge Current | 0.42A | |
|
Operation Temperature Range |
Charge: 0~60℃ | Humidity /湿度60±25% |
| Discharge: -20~60℃ | ||
|
Storage T/H Range |
-20~50℃/60±25% |
Test method and request
| Items | Test Method | Request |
|
Appearance |
By sight |
No obvious flaw,blot, scratch distorted, tympanic. |
|
Open-Circuit Voltage |
The open-circuit voltage shall be measured within 24 hours after the standard charge. |
≥3.7V |
|
Impedance |
AC Impedance Resistance |
≤100 mΩ |
|
Nominal Capacity |
0.2CB5BA discharge |
Discharge Capacity ≥1800mAh |
|
Cycle Life (0.2C) |
Test condition: temperature: First step:0.5C CC/CV to 4.2V Second step: Static 10 min Third step:0.2C CC to 2.5V. Fourth step: Static 10 min Fifth step: Repeat the first step to fourth step 300cycles, record 300cycle then compare with first cycle value. Sixth step: end |
Higher than 80% of the Initial Capacities of the Cell
|
2. Safety Performance
HB
| Items | Test Method and Condition | Criteria |
|
Over-Charge Protection |
At 20±5℃ conditions, after full-charging the battery with 0.5C and set the constant current and voltage supplier with 2times of the nominal voltage and current, then load it to the battery for 8h. |
The battery should be no leakage, deformation, smoking and explosion during the test processes. |
|
Over-Discharge Protection |
At 20±5℃ conditions, discharge battery to 6.0V with 0.5C constant current, then discharge with 30Ω loading for 24 hours. Check the appearance of the battery. |
The appearance is normal, |
|
Short-Circuit Protection |
After fast-charging, use a cable of 0.1Ω resistance to short the battery for 1 hour. Then check the appearance of the battery. |
The appearance is normal, |
