IIT Students Launch Wall-Mounted Home Backup Battery

Forget the dusty battery boxes taking up space in your garage. Researchers from IIT Hyderabad just launched a home backup power system that mounts on your wall like a flat-screen TV.

Pur Energy, a startup born at one of India's leading technology institutes, unveiled the PuREPower 3.0 Lite this month. The sleek unit packs an inverter, lithium battery, and AI-powered energy management into a single compact box weighing just 30 kilograms.

The system powers typical household needs for up to four hours during outages, including energy-hungry appliances like air conditioners and water heaters. At 3 kilowatts of output, it handles the demands of a modern home without the toxic lead-acid batteries that have dominated backup power for decades.

What makes this especially timely is its solar compatibility. Homeowners with rooftop panels can store excess daytime energy and use it at night or when the grid fails. The system seamlessly switches between solar, battery, and grid power based on availability and cost.

The AI brain inside learns your usage patterns and optimizes energy storage automatically. A mobile app lets you monitor everything remotely, and built-in protections guard against power surges and temperature extremes.

At just 15 centimeters deep, the unit fits in spaces where traditional battery setups never could. Pur Energy even offers it in four colors (white, silver, gold, and orange) so it doesn't look like industrial equipment bolted to your wall.

The system works in temperatures from negative 10 to 60 degrees Celsius, making it viable across diverse climates. A five-year warranty comes standard, with options to extend coverage up to 12 years.

The Ripple Effect

Clean backup power matters beyond individual convenience. Lead-acid batteries contain toxic materials that often end up in landfills or recycling facilities in developing countries, where they poison soil and water. Every lithium-based system that replaces the old technology reduces that environmental burden.

As solar installations grow worldwide, affordable battery storage becomes the missing link. Homeowners generate clean energy during sunny hours but still depend on the grid at night. Systems like this close that gap, making renewable energy practical around the clock.

For a startup emerging from an academic incubator, the launch signals how university innovation is reaching real-world applications faster than ever.

Power outages disrupt lives, but the solutions keeping our lights on are getting cleaner and smarter every day.