
We Diagnosed, Upgraded, Synced and Powered Rakesh Babulal & Co. without adding a single battery
The Challenge
Rakesh Babulal & Co, Chartered Accountants one of Coimbatore’s well-established auditing firms, deadlines weren’t suggestions—they were commitments. With financial filings, audits, and client data moving across 10+ workstations, reliability was non-negotiable.
But the power backup system wasn’t keeping up.
Despite having a 12V 150Ah tubular battery with a 1kVA inverter—only 3 months old—the office was running on just 4 hours of backup. Worse, there was no mobile tracking, no alert system, and no way to know how much charge remained or when it would fail.
Each time the lights flickered, the team paused—not knowing whether they’d finish work or be forced to reboot.


Our Main Focus Was
This wasn’t about replacing a faulty battery—it was about protecting time, preserving trust, and making energy management effortless for a team that couldn’t afford even a minute of delay.
Our main focus was to:
Retain the usable hardware and integrate it into a smarter system
Extend backup to ensure at least 6+ hours of uninterrupted work
Add intelligent tracking so the team could monitor power at a glance
Minimise maintenance and eliminate battery health guesswork
They didn’t need more power—they needed smarter power.
The Challenge
Cellex deployed a tailored CELTAN energy storage solution, designed to work efficiently with their existing 12V 150Ah battery.
We equipped the system with a new-age inverter and integrated a Battery Management System (BMS) that synced with the team’s smartphones—delivering real-time stats, health tracking, and alerts.
Why this solution?
- Upgrading the core while retaining the battery maximised value and reduced waste
- A smarter inverter enabled faster charging and better energy distribution
- The BMS brought in visibility, control, and peace of mind—no more silent failures
The transformation wasn’t in the hardware alone—it was in how the team now felt: informed, empowered, and uninterrupted.

Worked for Hours
Backup jumped from 4 to 6.5+ hours
Power Saved
Smart upgrades made the existing battery perform like new
Smart Move
Real-time monitoring through BMS and mobile app
Confidence Restored
Teams could meet deadlines without fear of power drops
Zero Maintenance
No water refills, no corrosion, no manual intervention—EASY MOBILITY