OEM Lithium Battery Manufacturer India — Custom Packs, Factory-Direct

Your Battery. Your Specs. Built in India.

Leolus Energy supplies custom lithium battery packs to OEM manufacturers, system integrators, and product companies across India. Whether you are building drone frames, solar lighting systems, energy storage units, or industrial electronics — we manufacture the battery to your exact specification, from our facility in Bangalore.

Who We Supply

What an OEM Partnership with Leolus Energy Includes

Why a Domestic OEM Battery Supplier Matters

A significant share of lithium battery packs currently used in Indian drones and electronics are sourced from outside India. This creates supply chain risk, long lead times, import costs, and — for government or PLI-scheme related procurement — potential compliance issues. A domestically manufactured battery from an MSME-registered Indian supplier resolves all of these:

• Shorter lead times: Stock and custom production managed in India, without the 6–10 week import windows common with international suppliers
• Responsive design changes: When your product evolves, we can adjust the battery specification without a 3-month international design cycle
• PLI and government procurement compliance: Drone OEMs and solar companies supplying government projects increasingly need to demonstrate a domestic battery supply chain
• After-sales support: If a pack fails in the field, you can reach our team directly — not a foreign manufacturer's support ticket queue
• No import duty on the battery: Factory-direct supply removes the import cost layer that adds 15–30% to imported battery pack pricing

LFP Battery Manufacturing — LiFePO4 Packs Built in India

When buyers look for LFP battery manufacturers in India, they are usually looking for one of two very different things: cell manufacturing, or pack manufacturing. It is worth being precise about which one you need, because almost nobody in the market makes that distinction clear.

LFP cell manufacturing — producing the raw LiFePO4 cells themselves — is a gigafactory-scale business, and India's domestic cell capacity is still being built out. LFP pack manufacturing is where the engineering that determines your product's actual performance happens: cell grading and matching, series–parallel architecture, BMS design and configuration, thermal layout, enclosure, and validation testing. Leolus Energy is an LFP pack manufacturer, and for the overwhelming majority of OEM requirements that is the partner you actually need.

Where LFP is the right call: anything that cycles daily for years and does not have to be light — solar, ESS, street lighting, industrial standby, weighing and instrumentation. Where it is not: drones and UAVs, where energy per kilogram decides flight time and semi-solid state or Li-ion wins outright. We build both, and we will tell you which one your application actually needs rather than steering you to the higher-margin option.

Cell Sourcing, Imports & Why It Matters to Your Product

India's lithium cell supply is still substantially import-dependent, and any honest Indian battery manufacturer will tell you the same. What separates suppliers is not whether cells are imported — it is what happens to those cells after they land.

We import cells directly from established international manufacturers and then do the work that actually determines pack quality in India: incoming inspection, capacity and internal-resistance grading, cell matching within each pack, assembly, BMS programming and pack-level operational testing. A pack built from graded, matched cells behaves predictably for its whole life. A pack built from ungraded cells fails early at whichever cell was weakest, and no BMS can fully compensate for that.

• Direct sourcing, not a trading layer: buying cells ourselves keeps the cost structure and the traceability under our control rather than a middleman's
• Graded and matched in-house: every cell is measured before it goes into a pack, and matched sets stay together
• Chemistry chosen per application: semi-solid state, Li-ion, Li-polymer or LFP — selected against your duty cycle, not our inventory
• Documented and invoiced in India: GST invoice, test documentation, local warranty and a support line you can reach in your own time zone
• Responsible end-of-life: see our battery recycling and disposal process for what happens after the pack's working life

If you are sourcing cells or packs at volume and want to understand exactly where each part of the chain sits, ask us on a call. We would rather explain the supply chain honestly than have you discover the gaps after an order.