NO. | Items | Specifications |
1 | batteries | 3.7v 2500mah lipo battery |
2 | Charge voltage | 4.2V |
3 | Nominal voltage | 3.7V |
4 | Nominal capacity | 2500mAh 0.2C Discharge |
5 | Charge current | Standard Charging:0.5C Rapid charge: 1.0C |
6 | Standard Charging method | 0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.05C |
7 | Charging time | Standard Charging:2.75hours(Ref.) Rapid charge: 2hours(Ref.) |
8 | Max.charge current | 1.0C |
9 | Max.discharge current | 1.0C |
10 | Discharge cut-off voltage | 2.5V0.25V(0.2C) |
11 | Operating temperature | Charging: 0 °C ~45 °C Discharging:0 °C ~45 °C |
12 | Storage temperature | -10°C~ +45 °C |
13 | Dimension | Length:73±2mm (not including tabs) Width:55±0.5mm Thickness:5±0.2mm |
14 | Drop Test | The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage |
15 | cycle time | ≥500times |
How to Ensure the Safety of Lipo Batteries:
Ensuring the safety of lipo batteries is of paramount importance, given their widespread use. Here are several key measures:
Proper Charging: Always use the charger specifically designed for the lipo battery. Overcharging can lead to overheating and potential explosion. Many chargers now come with built-in safeguards that stop charging once the battery reaches its full capacity. It's also crucial to monitor the charging process and not leave the battery unattended for extended periods.
Storage Conditions: Store lipo batteries in a cool, dry place. High temperatures can degrade the battery's performance and increase safety risks. Ideally, keep them at room temperature or slightly below. Also, avoid storing fully charged or fully discharged batteries for long durations. A partial charge, around 30% - 60%, is recommended for long-term storage.
Physical Protection: Place lipo batteries in a protective case. This guards against physical damage like punctures, which can cause internal short circuits and subsequent fires. In applications where the battery might be subject to vibrations or impacts, such as in RC vehicles, proper mounting and cushioning should be used.
Avoid Over-Discharging: Lipo batteries should not be discharged beyond their recommended minimum voltage. Most modern devices with lipo batteries have built-in circuitry to prevent over-discharging. However, if using stand-alone lipo batteries, a voltage monitor can be employed to ensure they are not drained too low.
Quality Assurance: Purchase lipo batteries from reputable manufacturers. These companies typically adhere to strict quality control standards, reducing the likelihood of defective batteries that could pose safety hazards. Look for batteries with safety certifications and good customer reviews.
Fire Safety Precautions: In locations where lipo batteries are used or stored, have appropriate fire suppression equipment nearby, such as a fire extinguisher rated for electrical fires. This is a precautionary measure in case of a rare but potentially dangerous thermal runaway event.
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