Technical insight
Product and application details
asset monitoring
Its ultra-thin 8.2mm profile allows seamless integration into slim tracking tags without adding bulk.
Bluetooth headsets
The 350mAh capacity supports extended listening sessions while maintaining a lightweight 7.8g form factor for comfort.
IOT environmental monitors
Operating reliably from -20℃ to 60℃, it withstands harsh outdoor conditions typical for environmental sensors.
Portable medical instruments
This compact 17.5mm width fits precisely into handheld diagnostic tools requiring stable 3.7V power.
remote controllers
A 1C discharge rate ensures consistent current delivery for responsive control signals in gaming peripherals.
Smart watches
Weighing just 7.8g, it preserves the sleek, lightweight design essential for comfortable daily wear.
toy drones
Its low weight minimizes overall drone mass, extending flight time and improving maneuverability.
wireless intercoms
The small 32mm length allows easy installation in compact housing units for clear audio communication.
FULL TECHNICAL SPECIFICATION Model: Li-polymer 801730 | 3.7V | 350mAh Table 1: Electrical Parameters Index No. Item Specification Remark 1 Charge Voltage Max. 4.2V – 2 Nominal Voltage 3.7V Shipping voltage: 3.6V~3.9V 3 Nominal Capacity ≥350mAh @ 1C 1C discharge to 2.75V 4 Cycle Life ≥500 Times 80% capacity retention 5 Impedance Max: 60mΩ AC 1KHz after standard charge 6 Charge Current Max. 1.0C – 7 Discharge Current Max. 1.5C – 8 Discharge Cut-off 2.75V – Table 2: Standard Testing Environment & Instruments Requirement Condition / Accuracy Ambient Temperature 25°C ± 0.5°C Ambient Humidity 65 ± 20% RH Size Instrument
Table 1: Electrical Parameters Index
| No. | Item | Specification | Remark |
|---|---|---|---|
| 1 | Charge Voltage Max. | 4.2V | – |
| 2 | Nominal Voltage | 3.7V | Shipping voltage: 3.6V~3.9V |
| 3 | Nominal Capacity | ≥350mAh @ 1C | 1C discharge to 2.75V |
| 4 | Cycle Life | ≥500 Times | 80% capacity retention |
| 5 | Impedance | Max: 60mΩ | AC 1KHz after standard charge |
| 6 | Charge Current Max. | 1.0C | – |
| 7 | Discharge Current Max. | 1.5C | – |
| 8 | Discharge Cut-off | 2.75V | – |
Table 2: Standard Testing Environment & Instruments
| Requirement | Condition / Accuracy |
|---|---|
| Ambient Temperature | 25°C ± 0.5°C |
| Ambient Humidity | 65 ± 20% RH |
| Size Instrument Accuracy | ≤ 0.01mm |
| Current/Voltage Accuracy | Current: ±0.1%, Voltage: ±0.5% |
| Temperature Meter Accuracy | ≤ ±0.5°C |
Table 3: Charge & Discharge Testing Conditions
| Item | Testing Condition and Method |
|---|---|
| Standard Charging | 1C CC to 4.2V, then CV to cut-off current ≤0.01C |
| Quick Charging | 1.5C CC to 4.2V, then CV to cut-off current ≤0.01C |
| Standard Discharge | Constant discharge at 1C to cut-off voltage 2.75V |
| Standard Charge Time | 1.5 hours |
| Quick Charge Time | 1.0 hours |
Table 4: Mechanical Characteristics
| Item | Testing Condition | Standard |
|---|---|---|
| Vibration Testing | 10Hz-55Hz, 1Hz/min rate, 0.38mm excursion, 30 min per axis (X,Y,Z) | No leakage; Left Capacity ≥ 90% after 3h |
| Fall Down Testing | Drop from 1 meter height onto concrete ground (twice) | No explosion, no fire, no leakage |
Table 5: Safety Testing
| Item | Testing Condition | Standard |
|---|---|---|
| Over-charge | 4.5V constant voltage for 8 hours | No deformation or leakage |
| Short-circuit | 1 hour at 100mΩ after full charge | No explosion or fire |
| Heat Shock | Rise to 120±2°C at 5°C/min, maintain 10 min | No explosion or fire |
| Humidity & Heat | 40±2°C, 90-95% RH for 48 hours | No smoke or explosion |
Table 6: Temperature Testing & Maintenance
| Item | Testing Condition | Standard |
|---|---|---|
| High Temp. | 55±2°C for 2h, 1C discharge to 2.75V | Discharge ≥ 90% of original capacity |
| Low Temp. | -10±2°C for 16-24h, 0.1C discharge to 2.75V | Discharge ≥ 45% of original capacity |
| Elec. Maintenance | Store 28 days at 25±0.5°C after full charge | Discharge ≥ 85% of original capacity |
