YABO SL3400 3.6V 27000mAh 97.2Wh Lithium ion Backup Battery Pack Mini UPS Uninterrupted Power Supply for Router/Modem/LED Light

Description:

YABO SL3400 3.6V 27000mAh 97.2Wh Lithium-ion Backup Battery Pack
Mini UPS | Stable DC Power | Multi-Port Output | Intelligent BMS Protection

The YABO SL3400 Mini UPS Backup Battery Pack is a compact yet powerful uninterrupted power solution designed specifically for low-power electronic devices that require continuous, stable DC power. With a high-capacity 27000mAh lithium-ion battery (97.2Wh), multiple DC and USB outputs, and an intelligent Battery Management System (BMS), the SL3400 is ideal for routers, modems, IP cameras, LED lighting, smart home devices, and other critical electronics that cannot afford sudden power loss.

Unlike traditional portable power banks, the SL3400 is engineered as a true mini UPS, automatically delivering power during outages and voltage fluctuations, ensuring uninterrupted operation and data protection.

High-Capacity Lithium-Ion Battery for Reliable Backup Power

At the heart of the YABO SL3400 is a premium lithium-ion battery pack rated at 3.6V / 27000mAh, delivering a total energy capacity of 97.2Wh. This high energy density allows the unit to support connected devices for extended periods during power interruptions. Depending on the power consumption of the connected equipment, the SL3400 can provide several hours of backup time, making it suitable for both short outages and longer emergency scenarios.

The lithium-ion cells are selected for their stability, long cycle life, and consistent discharge performance, ensuring dependable operation over years of use.

Mini UPS Design with Automatic Power Switching

One of the most important advantages of the YABO SL3400 is its uninterrupted power supply (UPS) functionality. When connected to a wall adapter, the unit supplies power to devices while simultaneously charging its internal battery. In the event of a power failure, the SL3400 switches seamlessly to battery power with no noticeable interruption, protecting sensitive electronics from sudden shutdowns.

This automatic switching feature makes the SL3400 especially valuable for networking equipment such as routers, modems, and surveillance cameras, where even a brief loss of power can result in network downtime, data loss, or security gaps.

Multiple Output Ports for Versatile Applications

The SL3400 is designed to support a wide range of devices through its multiple output interfaces, allowing flexible deployment in various environments:

• USB-A Output (18W): Suitable for smartphones, tablets, smart home accessories, and USB-powered devices.
  
• USB-C Output (18W): Provides modern connectivity for newer devices that require USB-C power input.
  
• DC 9V Output: Ideal for networking equipment and communication devices.
  
• DC 12V Outputs: Multiple DC ports with a total output capacity of 12V / 4A, with a single port capable of delivering up to 4A.

This combination of USB and DC outputs enables the SL3400 to power multiple devices simultaneously, making it a centralized backup power hub for small electronic systems.

Intelligent BMS Protection System

Safety and reliability are core elements of the YABO SL3400 design. The built-in intelligent Battery Management System (BMS) continuously monitors battery status and operating conditions to ensure safe operation at all times. The BMS provides comprehensive protection, including:

• Over-current protection
  
• Over-voltage protection
  
• Short-circuit protection
  
• Over-charge protection
  
• Over-discharge protection

These safeguards protect both the internal battery and connected devices, reducing the risk of damage caused by electrical faults, improper charging, or excessive load conditions.

Package Content

• 1x Mini UPS lithium battery
  
• 3x DC5521 male to male power cable
  
• 1x DC5521 male to DC5525 male power cable
  
• 1x 12.6V/3A AC/DC Charger

Notes

• Do not use the 12V lithium back up battery pack in places with high humidity or where it may be exposed to wet.
  
• Do not modify or disassemble the mini UPS power bank.
  
• Do not throw the 12V power bank into fire or water.
  
• Do not place the power bank during charging on flammbable materials such as in the bed or carpets.
  
• No long-term placement in a low voltage state. In order to extend the service life, it's suggested charge every three months if long term storage.

Wide Range of Application Scenarios

The YABO SL3400 is designed for versatility and reliability across many use cases, including:

• Home and office routers and modems
  
• Surveillance cameras and security systems
  
• Smart home hubs and IoT devices
  
• LED lighting systems
  
• VOIP phones and communication devices
  
• Small electronic instruments and controllers

Whether used as a backup solution for critical infrastructure or as a stable power source in remote or temporary installations, the SL3400 adapts easily to different environments.

Conclusion

The YABO SL3400 Mini UPS Backup Battery Pack is a professional-grade power solution designed to deliver stability, safety, and uninterrupted performance. With its 97.2Wh lithium-ion capacity, multiple regulated outputs, automatic UPS switching, and advanced BMS protection, it stands out as an essential power backup device for modern digital environments. Compact, reliable, and highly versatile, the SL3400 is the ideal choice for users who demand continuous power and peace of mind for their critical electronic equipment.