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Starwatt® 18V Mini UPS for 18V ≤2.5A Devices, IoT Gateways, and POS Systems | Uninterrupted 3-6 Hours Power Backup, Zero-Lag Switching, Universal Compatibility for WiFi Routers, POS Terminals, and Cordless Tool Chargers | Trust in Reliability with a 1-Year Warranty

4,999.00

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18V Mini UPS for 18V ≤2.5A Devices, IoT Gateways, and POS Systems
Keep your smart home, business, and portable devices powered during outages with seamless performance and reliable backup.

Product Overview

The Starwatt® 18V Mini UPS is a compact, high-efficiency power backup solution designed to ensure uninterrupted operation for 18V devices, including IoT gateways, POS terminals, and cordless tool chargers, during power outages. Powered by a robust 20000mAh (87.36Wh) lithium-ion battery, built from four high-energy-density 21700 5000mAh 5C Li-Ion cells, it delivers 3 to 6 hours of backup, depending on device power consumption. Its lightweight, plug-and-play design ensures quick setup without tools or technical expertise, making it the ideal choice for smart homes, small businesses, and professional applications requiring reliable 18V power.

Key Features

  • High-Power 18V Output Design: Supports one 18V ≤2.5A device, perfect for IoT gateways, POS systems, WiFi routers, and cordless tool chargers.

  • High-Capacity Battery: 20000mAh (87.36Wh) with 4x 21700 5000mAh 5C Li-Ion cells, providing 3-6 hours of backup (varies by device load, e.g., 4 hours at 2A for IoT hubs).

  • Intelligent Battery Management System (BMS): Protects against overcharging, deep discharge, overcurrent, overheating, and short circuits, ensuring safe operation and extended battery life.

  • Zero-Lag Switching Technology: Seamlessly switches between mains and battery power, preventing device reboots or connectivity drops for uninterrupted performance.

  • Compact & Easy to Use: Plug-and-play setup with included 18V 3.6A power adapter for fast, stable charging while simultaneously powering your devices.

  • Durable Design: Sleek, durable polycarbonate body with a replaceable battery feature for long-term reliability and eco-friendly maintenance.

  • Wide Application: Ideal for 18V IoT gateways, POS terminals, WiFi routers, cordless tool chargers, smart home devices, security cameras, and other 18V DC devices with up to 2.5A current draw.

  • 1-Year Warranty: Trust in reliability with a comprehensive one-year warranty for peace of mind.

Universal Compatibility

Supports all 18V DC devices with current ratings between 0.2A to 2.5A. Compatible device types include:

  • Wi-Fi Routers: Standard and dual-band WiFi routers requiring 18V (e.g., select TP-Link, Netgear, or Ubiquiti models, 18V/1–2A).

  • IoT Gateways: Devices like Advantech IoT gateways or Zigbee/Z-Wave hubs for smart home ecosystems (18V, ≤2.5A).

  • POS Terminals: Compact point-of-sale systems, including Square Terminal docks or Verifone/Ingenico models (18V, 1–2A).

  • Cordless Tool Chargers: Chargers for 18V power tools from brands like Makita, Bosch, or DeWalt (18V, 1–2.5A).

  • Security Cameras: Select IP cameras or PTZ cameras in non-PoE configurations (18V, ≤1.5A).

  • Smart Home Devices: Controllers, smart speakers, or edge AI devices requiring 18V (e.g., 18V/1–2A).

  • Portable Audio Devices: High-end Bluetooth speakers or compact amplifiers (18V, ≤2A).

  • Network Switches: Small-scale network switches for home or office networks (18V, ≤2A).

  • Embedded Systems: Industrial or automation systems requiring stable 18V power (18V, ≤2.5A).

  • Medical Devices: Portable diagnostic tools or analyzers in field applications (18V, ≤2A).

Not Compatible: Devices requiring >2.5A (e.g., high-power laptops, large monitors) or non-standard 18V connectors (verify tip polarity and connector size, typically 5.5mm x 2.5mm).

Note: Always confirm device specifications (18V, ≤2.5A, positive tip polarity, connector size) before connecting to ensure compatibility.

Why Choose Starwatt® 18V Mini UPS?

The Starwatt® 18V Mini UPS is your ultimate solution for uninterrupted power to 18V devices, ensuring seamless connectivity and performance during outages. Perfect for IoT gateways, POS terminals, WiFi routers, and cordless tool chargers, it delivers reliable 18V/2–2.5A power with zero-lag switching and universal compatibility. Designed for 24/7 operation, it keeps your smart home, small business, or professional setup running smoothly, supporting remote work, online transactions, home automation, and tool charging without disruptions. With wide compatibility across 18V devices, a high-capacity 20000mAh lithium-ion battery, and a 1-year warranty, Starwatt ensures trusted reliability for your essential 18V devices.

Stay Powered, Stay Productive!
Add the Starwatt® 18V Mini UPS to your cart today and enjoy uninterrupted power for your IoT, POS, and portable devices!

Item Model – ROU18V25S
Power Source / Input – Router’s Power Adaptor Input: 19V, 3.6A /- 2%
Number of Outputs – One
Power Output – 18V, ≤2.5A + /- 2%
Battery Capacity – 20000mAh | 87.36Wh | 4 x 21700 5000mAh 5C High Energy Density Lithium ion Cell
1 x Starwatt® 18V Mini UPS Single Output (Model: ROU18V25S) 1 x BIS Certified 19V 3.47A Power Adapter 1 x Bridge Cable (30cm, 5.5×2.1mm connectors) 2 x Additional Connector Tips (5.5×2.5mm, 4.0×1.7mm) 1 x User Guide 1 x Warranty Card
Installation Steps:
1.Switch off your Router Main Power Supply.
2. Disconnect your Router from Power Adapter.
3. Ensure that Router UPS Push Button switch is in OFF position (Red mark in pressed down position is ON; other way is OFF).
4. Connect Router Power Adapter to “IN” side of Router UPS.
5. Connect “OUT” Side of Router UPS with supplied Cable to your Router Power Input.
6. Switch on the Main power supply.
RED Light on Router UPS Indicates Router UPS is receiving Power from the Adaptor and Battery Charging.
BLUE Light on Router UPS Indicates Router UPS is receiving Input Power and Battery is fully charged.
Green Light on the Router UPS Indicates Router UPS is Not receiving Input Power and UPS mode is ON.
7. Switch on the Router UPS Push button switch. Now your router should be up.
IMPORTANT:
1. Please check the power ratings of your Wi-Fi router/adapter (written on back of router/adapter) before ordering the compatible model. Router’s voltage must match with UPS voltage.
2. The Starwatt Wi-Fi Router Online UPS should be charged for 1 hour before first use.
3. Please check the power ratings of your Wi-Fi Router to order compatible model. Self-Check compatibility section can help to choose the right model.
4. Make sure to connect your adaptor to the input. Connecting the power source to the output jack can permanently damage the device and void warranty.
5. Keep the UPS away from the reach of children.
19v mini UPS

Zero-Lag Switching

  • Allows your Router/Modem to seamlessly continue functioning during power outages with no downtime.

24×7 Operation

  • Up to 3-6 hours Backup – 20000 Li-Ion Battery made of 4 x LG 5000mAh 5C High Energy Density Lithium ion Cells with Intelligent Battery Management System for Over-Charge and Low Battery Deep Discharge Protection.
Features 19v mini ups
19v mini ups for Asus

Intelligent Charging

  • Comes with a True 19V 3.47A Power Adaptor for Fast charging and Powering Connected Devices simultaneously.
  • 3X Battery Life with Optimized CC-CV Charging algorithm ensures that the internal battery of Router Online UPS is charged safely and provide a much longer battery life.

Supported Devices

  • Compatible with wide range of 18V WiFi Routers, 18V Modems, 18V ONT, 18V ONU, 18V WiFi Cameras, 18V CCTV Cameras, 18V Media Converters, 18V Smart Speakers, 18V Audio Equipments etc.

Portable & Light Weight

  • Quick installation with Plug and Play Design.
  • Comes with LED Indicator for Charging, UPS Running on Battery, Fully Charged. Easy to Operate | Wall Mount design | Removable 30cm Bridge Cable.

Detailed Specification:

  Brand  Starwatt®
  ManufacturerStarwatt Technologies Private Limited, SCO 138, First Floor, Panchkula Shopping Complex, Peermuchalla, Zirakpur, Punjab, India – 160104
  Model Series  Mini UPS Pro
  Model Year  2025
  UPS Dimensions  L 17.5 cm x W 10 cm x H 5 cm
  LED indicator  Charging, UPS Running on Battery, Full Charged
  UPS Model  ROU18V25S
  Number of Items  Starwatt 18V 2.5A Mini UPS x1, Power Adapter x1, Bridge Cable x1, Connectors x2, User-Guide x1 & Warranty Card x1
  Power Source / Input  19V, 3.6A +/- 2%
  Power Output  18V, <2.5A +/- 2%
  Number of Output  One
  UPS Switching Type  Zero Lag Switching
  Battery Backup Time  3-6 Hours
  Batteries Included  Yes – Contained inside UPS
  Batteries Type  High Energy Density Lithium-ion batteries
  Battery Capacity  20800mAh | 80.36Wh | 4 x 5200 mAh
  Battery Protection  Battery Management System with Overcharge and Deep Discharge Protection
  Cable Length  30 cm
  Connector Type  DC Jack IN: 5.5*2.1mm, OUT: 5.5*2.1mm, Additional Connectors : 5.5*2.1mm to 5.5*2.5mm (1), 5.5*2.1mm to 4.0*1.7mm (1), 5.5*2.1mm to 3.5*1.35mm (1)
  Material  Polycarbonate
  Wall Mount  Yes
  Country of Origin  India
  Item Weight  1100 Grams

Frequently Asked Questions:

Router Online UPS has an intelligent battery management system that automatically charges the battery when the power is available and seamlessly switches to battery mode during power cuts.
Battery will only charge when UPS is connected to Adaptor with the power switch in the ON position.
Yes, connectors for thin pin routers are included in the package.
Q: What’s the backup time? How can I decide which model is suitable for my device? A: Different make/models of routers, consume different amounts of current. Hence, backup time will depend on the make/model of the router from 3 to 6 hours. You can choose the most suitable UPS for your Router from the list of the UPSs by getting the below-mentioned information: 1. What is the device you plan to use? 2. What is the working voltage and currently mentioned on the Adaptor or Router? 3. What is your expected backup time? Q: How can I maintain the device’s lifetime? A: When stored, the ups will self-discharge at a rate that is greatly affected by the ambient temperature. It should therefore be fully charged before being put into storage and if it is to be stored for a long period, it should be recharged periodically to prevent it from losing its original capacity. If the UPS is not used for a long time, it is suggested to charge it once every 3~5months Q: Do you have any other models? A: Yes, we have various models with different voltage configurations, you can contact us at +91-8971090763 contact for more details. Q: How long does the Router Online UPS provide power backup? A: Up to 6 hours and depends on your make/model as power consumption varies with different OEMs. Q: How do I know if Router Online UPS will work with my Wi-Fi Router? Is there a compatibility list? A: Starwatt Wi-Fi Router Online UPS has a range of models that supports 5V, 9V, 12V powered Wi-Fi, Wi-Fi/ADSL Router. We also provide dual and triple output devices. Please ensure power compatibility by looking at the specification sticker on the backside of the Router/Modem and power adaptor before you place the order. Q: How do I install Router Online UPS? A: Router Online UPS is designed for DIY (Do It Yourself). It’s really simple to install – The installation guide in the packaging box will help you install Router Online UPS in less than 30 seconds. Q: How long does it take to install Router Online UPS to my Wi-Fi Router? A: 30 Seconds only. Q: Does it work with ADSL/Wi-Fi Routers? A: Yes. Please ensure to buy/use the model with appropriate power ratings. Q: Will my Wi-Fi Router be affected anyway? A: No, Router Online UPS is carefully designed with several safety protection circuits and a battery management system to ensure the safety of your Wi-Fi Router. Q: I have an ADSL Router (Modem) and a separate Wi-Fi Router, Can Router Online UPS provide power backup to both? A: Router Online UPS is primarily designed for a single device. However, you can use a splitter cable if the combined power ratings of your Modem and Router are less than the Router Online UPS specifications. Q: Does Router Online UPS come with a warranty? A: Yes, Router Online UPS comes with 1 Year warranty. Q: Can I connect Router Online UPS with any 9V device? A: Yes. Please check the power ratings of the Wi-Fi router before connecting to the Router Online UPS. If the Rater operational voltage is 9V, then it can be used to provide power backup to any 9V router. Q: Can I use this outdoor? A: No. The current version of Router Online UPS is designed for Indoor use.

Router Online UPS has an intelligent battery management system that automatically charges the battery when the power is available and seamlessly switches to battery mode during power cuts.

Battery will only charge when UPS is connected to Adaptor with the power switch in the ON position.

Yes, connectors for thin pin routers are included in the package.

Q: What’s the backup time? How can I decide which model is suitable for my device?

A: Different make/models of routers, consume different amounts of current. Hence, backup time will depend on the make/model of the router from 3 to 6 hours.

You can choose the most suitable UPS for your Router from the list of the UPSs by getting the below-mentioned information:

1. What is the device you plan to use?
2. What is the working voltage and currently mentioned on the Adaptor or Router?
3. What is your expected backup time?

Q: How can I maintain the device’s lifetime?

A: When stored, the ups will self-discharge at a rate that is greatly affected by the ambient temperature. It should therefore be fully charged before being put into storage and if it is to be stored for a long period, it should be recharged periodically to prevent it from losing its original capacity.

If the UPS is not used for a long time, it is suggested to charge it once every 3~5months

Q: Do you have any other models?

A: Yes, we have various models with different voltage configurations, you can contact us at +91-8971090763 contact for more details.

Q: How long does the Router Online UPS provide power backup?
A: Up to 6 hours and depends on your make/model as power consumption varies with different OEMs.

Q: How do I know if Router Online UPS will work with my Wi-Fi Router? Is there a compatibility list?
A: Starwatt Wi-Fi Router Online UPS has a range of models that supports 5V, 9V, 12V powered Wi-Fi, Wi-Fi/ADSL Router. We also provide dual and triple output devices. Please ensure power compatibility by looking at the specification sticker on the backside of the Router/Modem and power adaptor before you place the order.

Q: How do I install Router Online UPS?
A: Router Online UPS is designed for DIY (Do It Yourself). It’s really simple to install – The installation guide in the packaging box will help you install Router Online UPS in less than 30 seconds.

Q: How long does it take to install Router Online UPS to my Wi-Fi Router?
A: 30 Seconds only.

Q: Does it work with ADSL/Wi-Fi Routers?
A: Yes. Please ensure to buy/use the model with appropriate power ratings.

Q: Will my Wi-Fi Router be affected anyway?
A: No, Router Online UPS is carefully designed with several safety protection circuits and a battery management system to ensure the safety of your Wi-Fi Router.

Q: I have an ADSL Router (Modem) and a separate Wi-Fi Router, Can Router Online UPS provide power backup to both?
A: Router Online UPS is primarily designed for a single device. However, you can use a splitter cable if the combined power ratings of your Modem and Router are less than the Router Online UPS specifications.

Q: Does Router Online UPS come with a warranty?
A: Yes, Router Online UPS comes with 1 Year warranty.

Q: Can I connect Router Online UPS with any 9V device?
A: Yes. Please check the power ratings of the Wi-Fi router before connecting to the Router Online UPS. If the Rater operational voltage is 9V, then it can be used to provide power backup to any 9V router.

Q: Can I use this outdoor?
A: No. The current version of Router Online UPS is designed for Indoor use.

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