The cells, battery systems, power conversion and charging that keep machines doing useful work.
AS OF 2026-09-13DATED · NON-EXHAUSTIVE
Research reviewed 2026-09-13. Available means documented access or production, not assured spare capacity for every specification. Tight refers to the scope identified in the node, not every robot component. Supply unclear means the reviewed evidence does not settle availability at the selected boundary. Expansion describes how additional usable supply can be delivered, not a promised lead time. Pricing power describes our assessment of the ability to defend price or terms; it is not inferred from technical importance alone.
Power is part of the machine's working day
Energy stored is not work delivered
A machine needs both enough energy for its task and a way to deliver power when and where it is required. A battery can have ample stored energy while being unsuitable for a brief high-power movement. A capable processor can still be constrained by conversion losses or cooling. The useful system is more than a cell's energy-density number.
Mobile autonomy is not synonymous with electrification. Fixed robots may use wired power; off-road machines may retain engines and hydraulic motion; some machines are tethered. This branch follows the merchant electrical-power purchases without routing every family through a battery.
Cells and battery packs remain separate because cell manufacture and the pack supplier's mechanical, electrical and operating responsibilities are different businesses. Pack protection, monitoring and thermal design stay within the pack explanation. We do not turn each indispensable function into a separate mandatory market.
Utilization can matter more than a larger battery
Longer working hours can increase energy throughput and replacement demand. Opportunity charging can reduce the battery needed for one shift; better efficiency can extend useful operation without adding capacity. The economic unit may be a battery pack, a charging installation or power electronics inside the machine, not a universal cost per robot.
The IEA's 2026 battery review reports an 8% decline in average battery prices in 2025 and substantial differences between regions. This is broad battery-market evidence, not a price index for robot packs. It warns against assuming that more autonomous machines automatically give cell suppliers stronger pricing power.
Supply-chain map
Storing, replenishing and delivering power
A cell becomes part of a pack; charging replenishes it; conversion serves the machine's loads. A wired source can bypass the battery route.
The labelled arrows distinguish incorporation from electrical supply. Dashed wiring is an architectural alternative. These are functional routes, not claims that the named vendors buy from one another. Cell content is already included when a customer buys a complete pack.
Rechargeable cells
Available
Role
Stores electrochemical energy for a selected duty
Expansion
Cell factories, process yield and qualified output; nameplate is not usable output
Pricing power
Broad price competition; chemistry and regional qualification still matter
Why it exists
The cell stores energy in an electrochemical form. Its chemistry, construction and operating envelope determine how much energy and power it can supply over its life. This is a manufacturing boundary distinct from arranging cells into a machine-ready pack.
Samsung SDI: battery products for power devices and robotics, alongside other large battery markets.
LG Energy Solution: cylindrical and pouch battery offerings for robotic applications. Its portfolio also includes modules and packs; those broader scopes should not be counted as cell revenue again.
Our inference is that robot demand may be meaningful for particular high-power or compact products without setting the economics of the whole cell industry. Better cells can also reduce the number or mass of cells needed for a task. The node stays separate from packs because merging them would hide chemistry, manufacturing scale and yield behind the assembler's integration work.
Delivers an integrated energy-storage system to the machine
Expansion
Qualified cells, pack assembly, protection and application validation
Pricing power
Fit, integration and service can differentiate beyond cell cost
Why it exists
A machine cannot simply consume a list of cell specifications. A pack provides a physical arrangement, electrical connections, monitoring and protection within a defined enclosure and operating envelope. The supplier accepts a broader responsibility than a cell manufacturer, while the machine builder still owns the surrounding system.
Relevant businesses
Inventus Power (private): standard and configurable lithium-ion packs incorporating battery management, with commercial motive-power applications.
EnerSys: NexSys iON integrated battery systems with management controls and scalable configurations for motive-power duties.
Worth understanding
Inventus describes working with AGV and AMR manufacturers to specify the battery solution. EnerSys's material-handling scope is not evidence of an interchangeable humanoid pack. The common business is supplying an integrated battery; the qualified design follows the application.
The available cell market does not settle the supply of a qualified pack. Enclosure design, connection quality, protection logic, heat, vibration and acceptance testing can determine readiness. No node-wide lead-time or spare-capacity evidence was established for those completed systems, which is why their supply label differs from the broader cell assessment.
Our inference is that reusable pack designs and a reliable support record can save customer engineering. The counterforce is that large builders can bring pack integration inside or negotiate across assemblers. Battery management electronics remain real upstream inputs, but the machine customer often obtains their function inside the pack rather than as a separate commercial purchase.
Conditions power for motors, computing and other loads
Expansion
Module production, thermal design and qualification within the power architecture
Pricing power
Efficiency and integration savings can support a premium; alternatives remain
Why it exists
Different loads need different voltages and power behaviour. A converter or power supply transforms the available source into a usable electrical supply. Its efficiency, size and transient performance affect the rest of the machine, whether the source is a battery or a wired connection.
Relevant businesses
Vicor: modular power conversion for robotic power-distribution architectures, including battery and tethered applications.
A Vicor account of OLogic's design work describes using supplied power modules instead of designing each supply from discrete parts. That is the relevant boundary: a customer pays to avoid repeating power-design work. It is not proof that every machine needs the same bus voltage or converter.
TDK-Lambda's small-robot power-supply example also shows the wired route. A branch that forced all robots through rechargeable cells would miss an established part of the supply chain.
Our inference is that lower conversion losses can have value beyond the converter's price by reducing cooling, weight or required battery energy. The business test is whether a supplier delivers those savings repeatedly and retains enough of them in price. Catalogue breadth and customer examples do not establish node-wide spare capacity, so supply remains unclear. A converter's role in an AI robot alone is not evidence of semiconductor-style scarcity.
Replenishes machine energy within the operating workflow
Expansion
Charging hardware, vehicle interfaces and site installation
Pricing power
Compatibility and uptime savings differentiate; contact and wireless routes compete
Why it exists
A mobile machine has to replenish its energy while meeting the site's work schedule. A charging system connects the external power source to the battery under appropriate control. The purchased scope can include both stationary and mobile equipment, communications and installation support.
EnerSys: NexSys AIR wireless charging for AGVs and multiple supported battery technologies.
Worth understanding
Conductix's mowing-robot reference provides an application beyond indoor logistics. Its charging-contact range is an alternative to wireless transfer. Merchant products and application evidence support availability; a particular site's installation schedule remains a separate matter.
Pack and charger are often economical to source together, but the boundary is not inseparable. Inventus describes participation in Delta-Q's compatibility programme, illustrating coordinated products from different suppliers. Keeping charging separate preserves the site's choice of infrastructure and its different replacement and installation cycle.
Our inference is that the value of charging is time returned to productive work, not wireless technology for its own sake. Opportunity charging may allow a smaller battery or fewer spare machines, while adding infrastructure and integration cost. Evaluate those effects over the actual duty cycle. A supplier's full charger sale is not a second sale of the battery it replenishes.
A better working day can outweigh a better component
Cell cost, pack integration, conversion efficiency and charging schedules interact. The branch is best evaluated through useful work delivered over a machine's life, with the spending assigned to the actual supplier responsibility. More hours of operation can be achieved by several competing combinations of these purchases.
The present evidence does not support a universal power shortage. It supports a large, competitive cell industry and differentiated integration problems downstream. Follow qualified designs, reliability, customer engineering saved and service economics before treating any of those problems as durable pricing power.
This dated map selects economically useful boundaries. Company participation does not establish a trade relationship between the named suppliers, and a product announcement is not evidence of accepted machine output.