Battery packs, engineered from the BMS up.
EtherVault designs and builds EV battery packs, home and business energy storage, and the battery management systems inside them. Certified, compact, and made for Indian roads and summers.

Three products. One engineering team.
Every pack we ship runs on a BMS we designed ourselves, so the hardware, firmware and support all come from one place.

3.2 kWh EV battery pack
50.4 V, 65 Ah. AIS 156 Amd 4 certified, rugged enclosure, blind-swap connector, charger included.
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5 kWh & 10 kWh storage
48 V LFP modules for inverter backup and solar. Connect in parallel for stacks up to 100 kWh.
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NewSparky BMS
3S–16S, 120 mA passive balancing, 6 mV cell sensing. Compliant with AIS 004, AIS 156 Amd 4, CISPR 25.
View BMS →What are you powering?
Pick the closest match and we'll point you to the right product.

What you get besides a battery.
Our own BMS
Designed and built in-house. We can tune protection limits, communication and balancing to your vehicle or inverter.
Certified, not pending
Our 3.2 kWh pack holds AIS 156 Amd 4 certification. The BMS is compliant with AIS 004, ISO 11452 / UN R10 and CISPR 25.
Built for Indian conditions
Rugged enclosures and thermal design for heat, dust, monsoon and rough roads.
Engineers on the line
You speak to the people who designed the product — for sizing, integration and after-sales.
What is AIS 156 Amd 4, and does my scooter battery need it?
AIS 156 is the Indian safety standard for traction batteries in L-category electric vehicles such as scooters and motorcycles. Amendment 4 is the current revision. Battery packs fitted to e-2Ws sold in India need to comply. Our 3.2 kWh pack is certified to it.
Can the 3.2 kWh pack be used in my existing scooter?
It's a 50.4 V, 65 Ah pack with a blind-swap connector. Share your motor controller and mounting details and our engineers will confirm fit and communication compatibility.
Can I connect several 5 kWh or 10 kWh storage units together?
Yes. The modules connect in parallel at 48 V, so you can start with one and expand up to 100 kWh.
Do you sell the BMS on its own?
Yes. NewSparky is available to pack makers in 3S to 16S configurations, with engineering support for integration.
Where do you supply?
Across India, with on-site support across India.
Talk to an engineer.
Tell us what you're building. You'll hear back from an engineer within one working day.