Retail Chain Deploys 220W Li-ion UPS to Protect POS and CCTV Systems

Client Background

A national convenience store chain with more than 180 retail locations was facing frequent power fluctuations and short blackouts caused by unstable local power grids. These interruptions often resulted in POS system failures, payment interruptions, and gaps in CCTV recording — directly affecting daily operations and store security.

The company needed a compact, maintenance-free UPS solution that could:

• Protect POS terminals and receipt printers

• Keep network routers and switches running

• Ensure CCTV systems continued recording

• Fit into limited counter space

• Reduce maintenance cost across multiple locations

Challenges

1. Traditional lead-acid UPS units were too bulky and required frequent battery replacement.

2. Short blackouts (1 - 5 minutes) caused POS rebooting and lost transactions.

3. Distributed CCTV units needed individual backup solutions, but stores lacked space for large UPS systems.

4. The customer required a standardized solution deployable across all branches.

Solution Provided by RSUN POWER

RSUN POWER supplied the 220W Li-ion UPS (High-Frequency Series) as the unified backup power solution for all stores. Key features that met the client’s needs included:

• Compact design suitable for under-counter installation

• Li-ion battery with 4 - 6× longer lifecycle compared to lead-acid UPS

• Instant switchover (<10ms) to prevent POS rebooting

• Multi-port AC output for POS + router + CCTV

• Smart load management for extended backup time

• Zero maintenance required

Each store deployed two units:

• One dedicated to POS + receipt printer

• One dedicated to router + NVR + CCTV cameras

Results

After full deployment, the retail chain reported:

• 100% reduction in POS reboot events caused by power loss

• Improved transaction continuity, reducing customer wait times

• Continuous CCTV recording, even during blackouts

• Over 60% savings in UPS maintenance cost due to Li-ion battery lifespan

• Standardized store equipment, simplifying future expansion and upgrades

Store managers also reported significantly smoother operations and fewer IT support calls related to power issues.

Customer Feedback

“The RSUN 220W Li-ion UPS completely solved our POS interruption problem.
It’s compact, easy to install, and reliable across all our branches.
Our stores finally run smoothly even during short power outages.”
— Operations Director, National Retail Chain

Why This Case Matters

This project demonstrates how a lightweight, long-life Li-ion UPS can become a perfect fit for multi-location businesses that require:

• Stable POS operation

• Continuous internet connectivity

• Reliable video surveillance

• A cost-effective, space-saving UPS strategy