Nexfly Series — Solid-State Drone Batteries

The Nexfly Series is our flagship range of semi-solid state drone batteries, designed specifically for professional UAV operations. We built these batteries because drone manufacturers kept telling us the same thing: existing lithium-ion and LiPo batteries weren’t cutting it for commercial flight. They wanted higher energy density without the weight penalty, longer cycle life without the safety trade-offs, and batteries that hold up after hundreds of charge cycles — not just the first twenty.

In real-world testing with drone manufacturers across India, the Nexfly batteries deliver stable power output from takeoff through landing. The solid-state electrolyte architecture means significantly lower thermal risk compared to traditional LiPo packs, which matters when you’re operating in Indian summer conditions or running continuous surveillance missions.

We offer the Nexfly in 4S, 6S, and 12S configurations ranging from 11,500mAh to 40,000mAh. If your UAV platform needs a specific voltage, capacity, or form factor, we can custom-engineer a battery pack to match your exact flight requirements. We work directly with drone manufacturers building agricultural spraying drones, surveillance UAVs, mapping platforms, and delivery systems.

Solid State Battery Manufacturers in India — Where We Actually Sit

There is a lot of noise around solid-state batteries in India right now, and most of it is about announcements rather than products. Several companies have announced future solid-state cell manufacturing plants; a smaller number are running R&D programmes; very few are shipping anything you can put in a working aircraft today. It is worth being clear about which of those we are.

Leolus Energy manufactures and ships semi-solid state battery packs — the Nexfly series — from our Bangalore facility, in production quantities, to drone manufacturers operating across India right now. We are a pack manufacturer, not a cell gigafactory. We do not claim to have solved fully solid-state cell chemistry, because nobody has commercialised it at scale anywhere yet. What we do claim is that the semi-solid state packs we build deliver materially better energy density and a safer thermal profile than the LiPo packs they replace, and that you can order one this month rather than reading about one in a press release.

Solid-state, semi-solid state and LiPo — the honest comparison

If you are evaluating solid state battery manufacturers in India for a drone programme, the practical question is not which company has announced the most ambitious roadmap — it is which one can hand you a qualified pack, a datasheet, a warranty and a support line today. We can, and we would rather you tested a sample than took our word for it. See the full comparison of Indian drone battery manufacturers or ask our team for a sample pack.