दृढ़Steadfast
Power That Doesn't Waver.
Battery backup and solar storage, engineered and manufactured in India.
Why Dridh
Built to Stand Firm.
Dridh (दृढ़) means firm. Steady. Unmoved.
In India, power still comes and goes. Lead-acid inverters wear out in a few years. Diesel is loud, costly and dirty. Too many homes and hospitals have learned to live with it.
We don't think they should have to. So we build energy storage the way the Western Ghats stand: quiet, strong, and there every single day. Each Raksha is named after one of their peaks, from Agasthya to Anamudi.
Clean power that doesn't waver. That is the whole idea.
How it works
Three Sources. One Steady Supply.
A Dridh battery and inverter hang side by side on your wall, drawn here from our own engineering models. While the grid is on, it runs your home and keeps the battery charged. When it drops, the inverter switches to the battery in 5 milliseconds. Add solar panels, and the sun runs your home by day and fills the battery for the night.
Grid power runs your home through the inverter, and keeps the battery topped up.
Backup: Raksha With solar: Swayam
- From solar
- From the battery
- From the grid
- Cleaned by the inverter
Two systems
Two Systems. One Architecture.
Raksha keeps your home running through power cuts. Swayam adds solar, so your home runs on its own power by day and by night. Both are built on the same Dridh battery, battery brain and inverter.
Raksha means protection
Raksha
Whole-home backup for power cuts.
An inverter and battery pack that take over the moment the grid drops, fast enough that you won't notice.
- Switches in 5 ms, before the lights can flicker
- Up to 10 kW: ACs, geysers and pumps, not just fans
- Four sizes, named after Western Ghats peaks
For homes with regular power cuts that want everything, ACs included, to keep running.
Swayam means self
Swayam
Solar with storage.
Your home runs on its own power by day and by night, not just through outages.
- Solar panels, battery and inverter as one system
- Runs your home on stored sun after dark
- The same Dridh battery, battery brain and monitoring
For homes with roof space, and small establishments where the grid is unreliable or expensive.
Compared
What You Use Now, and What Changes.
Most homes ride out power cuts on a lead-acid inverter. Hospitals, hotels and resorts lean on diesel generators. Here's how a Dridh system compares with both.
| Compared on | A lead-acid inverter | A diesel generator | Dridh |
|---|---|---|---|
| When the power goes | A flicker some devices notice | A gap while it starts up | Switches in 5 ms. Wi-Fi and computers carry on |
| What it can run | Lights, fans, TV and Wi-Fi | Whatever it's sized for | The whole home, ACs included, up to 10 kW |
| Upkeep | Water top-ups, and new batteries every few years | Fuel, oil and regular servicing | None. Sealed LFP, rated for 6,000 full cycles |
| Around the home | Acid and fumes | Noise and exhaust | No acid, no fumes, no exhaust |
When the power goes
- A lead-acid inverter
- A flicker some devices notice
- A diesel generator
- A gap while it starts up
- Dridh
- Switches in 5 ms. Wi-Fi and computers carry on
What it can run
- A lead-acid inverter
- Lights, fans, TV and Wi-Fi
- A diesel generator
- Whatever it's sized for
- Dridh
- The whole home, ACs included, up to 10 kW
Upkeep
- A lead-acid inverter
- Water top-ups, and new batteries every few years
- A diesel generator
- Fuel, oil and regular servicing
- Dridh
- None. Sealed LFP, rated for 6,000 full cycles
Around the home
- A lead-acid inverter
- Acid and fumes
- A diesel generator
- Noise and exhaust
- Dridh
- No acid, no fumes, no exhaust
Typical setups; no brands named. Raksha against lead-acid, row by row
How we build
Engineered Whole. Not Stitched Together.
Most home battery brands in India buy a finished box and add a sticker. We design the battery pack, the battery brain and the monitoring software ourselves, and tune them to work with our inverter as one system. One team answers for all of it.
- 01
The battery packLithium iron phosphate (LFP) cells, assembled and tested in Bengaluru.
- 02
The battery brain (BMS)Watches every cell, every second, and stops trouble before it starts.
- 03
The Dridh gateway and appShows your charge and backup time left, and lets our team spot a fault before you do.
- 04
The inverterTurns stored energy into clean home power, and switches over in 5 milliseconds.
5 ms switchover
A blink takes about 100 ms. We switch in 5. Wi-Fi, TVs and computers don't notice the cut.
Runs the whole home
Up to 10 kW of continuous power. Enough for air conditioners, geysers and pumps, not just fans and lights.
6,000 full cycles
Rated for 6,000 full charge-and-use cycles. At one a day, that's more than 16 years of cycling.
Safer chemistry
LFP is the most stable mainstream lithium chemistry. No acid, no top-ups, no fumes.
Clean, steady output
The inverter forms its own stable supply, so sensitive appliances need no stabiliser.
Watched, not just sold
Every system reports its health to us. If something drifts, we call you first.
Running a business that can't stop?
Clinics, restaurants, resorts, showrooms, print farms and casting units: see what fails in a power cut today, and how a Dridh system holds it.
Our roadmap
Not Just Building Batteries for Today.
Every pack we sell is ours to answer for, from the day it's installed to the end of its life. Our roadmap takes that further, in three phases.
Phase 1
Second-life storage
Storage built from EV batteries retired from the road while still holding 70–80% of their capacity: lower-cost storage, and fewer fresh cells to import.
Phase 2
Recycling our own cells
Taking back the packs we've deployed at the end of their life and recycling the cells, to recover lithium and cathode material in India instead of exporting battery waste.
Phase 3
Sodium-ion chemistry
Moving from lithium iron phosphate to sodium-ion: a chemistry made from materials India doesn't need to import, with strong cold-weather performance and a safety profile well suited to storage.
Questions
Questions, Answered.
What's the difference between Raksha and Swayam?
Raksha is backup: an inverter and battery that take over the moment the grid drops. Swayam adds solar panels, so your home runs on the sun by day and on stored solar power at night, not just through power cuts. Both use the same Dridh battery, battery brain and inverter.
Where are Dridh systems made?
In Bengaluru. We design our own battery packs, battery management system, inverter and monitoring software, and every pack is assembled and tested here.
How long will the battery last?
Dridh batteries are rated for 6,000 full charge-and-use cycles. At one full cycle a day, that's more than 16 years.
What happens the moment the power goes?
The inverter switches your home to the battery in 5 milliseconds, twenty times faster than a blink, so Wi-Fi, TVs and computers carry on without a restart.
Who installs and services Dridh systems?
Our own team. Every system is engineered in Bengaluru and installed and commissioned by us, and it reports its health to us, so if something drifts, we know before you have to call.
Do you make systems for businesses?
That's what comes next. We're scaling the same battery and BMS architecture up to commercial sites, from clinics and hospitals, restaurants, resorts and showrooms to 3D printing services and silver casting units: stackable from 30 kW to 80 kW, and up to 125 kW / 256 kWh for larger sites. Talk to our business team to plan yours.
What happens on the call with an engineer?
You tell us about your home and how often the power goes. We show you how backup would work there: what stays on, for how long, and what it costs, and send it to you as a written plan. If it makes sense for you, we then visit to survey your home.
Power proven
Stand Firm When the Grid Doesn't.
Tell us about your home. An engineer will walk you through how backup would work there: what stays on, for how long, and what it costs.
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What you'll get from the call
- 1
You tell us about your home: its size, what you run, and how often the power goes.
- 2
We show you how backup would work there: what stays on, for how long, and what it costs, EMI included. You get it all as a written plan after the call.
- 3
If it makes sense for you, we visit to survey your home, at a time that suits you.
One call, at the time you choose. Engineered, installed and serviced by our own team in Bengaluru.