Beyond the golden rules of avoiding extreme states of charge (20%-80%), preventing overheating, and using original chargers, the following points are particularly important for ensuring longer service life of telecom lithium batteries.

As a professional lithium battery manufacturer and solution provider, EverExceed shares the following insights:

1. Focus on Temperature Management — The Top Priority
Problem: Telecom equipment (such as ONTs, routers) generates heat due to continuous operation. Lithium batteries are sensitive to heat.
If devices have poor thermal design or are placed in enclosed spaces (such as weak-current boxes), the battery may stay in a high-temperature environment,
causing its lifetime to shorten rapidly.
Solutions:
- Improve ventilation: Ensure sufficient airflow around the device. Do not stack it with other equipment or bury it in a box full of cables.
- Keep away from heat sources: Avoid placing devices near radiators or direct sunlight.
- Consider active cooling: For high-heat devices, use small USB fans to help cooling. Reducing temperature by 10–15°C can double the battery lifespan.

2. Optimize Charging Strategy (for plug-in devices)
Problem: Many telecom devices (such as smart doorbells, portable routers) are designed for long-term plug-in use,
keeping the battery fully charged at 100%. This accelerates lithium battery degradation.
Solutions:
- If supported: In the companion APP or device management interface, look for “Battery Care Mode” or “Charging Optimization” feature,
which limits the charge to around 80% and significantly extends battery life.
- If not supported: For products like smart doorbells, you can manually unplug power once a month, let the device run on battery until around 50%,
then recharge. This avoids keeping the lithium battery at high voltage stress continuously.

3. Understand the “Backup” Role of Telecom Batteries and Test Regularly
Backup batteries in telecom devices such as base stations and routers are mainly used during unexpected power outages.
Although usually idle, they should not be neglected.
Solutions:
- Perform periodic charge/discharge: Every 3–6 months, simulate a power outage, let the device run on battery until about 50%, then recharge.
This “activates” the lithium battery, preserves chemical stability, and verifies backup functionality.
- Monitor status indicators: Many devices have battery health indicators. Check them regularly.

4. Use Original or Certified Replacement Batteries
When the telecom lithium battery eventually needs replacement (signs include swelling or extremely short runtime),
always choose official or certified batteries.
Poor-quality batteries not only have short lifespans but may also lack qualified protection circuits, creating risks of overheating, fire, or explosion.
For telecom applications requiring long-term unattended operation, this risk is unacceptable.

Conclusion
Extending the service life of telecom lithium batteries is a matter of proper usage, thermal management, and reliable replacement.
EverExceed’s advanced lithium battery technology and telecom power solutions ensure long-term safety, stability, and performance for telecom operators worldwide.