IDTechEx forecasts that batteries for humanoid robots will be an $850 million market by 2037, growing at a ten-year compound annual rate of 34.2%, in its new report “Batteries for Humanoid Robots 2027–2037”, published in early November 2026. It puts battery demand from humanoids at 10.5 GWh in 2037. Battery swapping, where a working robot takes a charged pack while the empty one recharges, adds demand for more packs than there are robots, the firm says.

Why it matters: runtime is one of the hard limits on humanoid deployment, and the forecast sets out which chemistries are likely to carry the industry through the next decade.

Key Facts

  • Market: $850M by 2037; 34.2% ten-year CAGR (IDTechEx forecast)
  • Demand: 10.5 GWh of humanoid battery demand by 2037
  • Today: NMC lithium-ion is the most common chemistry in humanoids
  • Later: solid-state “some years away”; lithium-sulfur not expected commercially until the early 2030s

Which batteries does IDTechEx expect?

NMC lithium-ion cells, in mid-, high- and ultra-high-nickel versions, are widely used today and in plentiful supply because they serve many other markets. Solid-state cells face two problems IDTechEx names: no scalable production of reliable solid electrolytes and poor contact at the electrode-electrolyte interface. Lithium-sulfur cells are expected to make up only a small share by 2037.

How does that fit with company plans?

Several companies are ahead of that timeline on paper. Samsung SDI said in September it aims to mass-produce its Solid Stack all-solid-state battery for humanoid robots in 2027, and XPeng says the solid-state battery for its IRON humanoid is in small-batch production. Others are working around chemistry: Boston Dynamics’ Atlas swaps its own battery in under three minutes, and Agility chose Nyobolt’s fast-charging packs for Digit 5.

Frequently Asked

How big will the humanoid robot battery market be?

IDTechEx forecasts it will reach $850 million by 2037, with a ten-year compound annual growth rate of 34.2% and 10.5 GWh of demand.

What batteries do humanoid robots use today?

According to IDTechEx, NMC-based lithium-ion batteries are currently the most common technology in humanoid robots.

When will solid-state batteries be used in humanoid robots?

IDTechEx says adoption is still some years away because of electrolyte production and interface issues; Samsung SDI has said it aims to mass-produce solid-state batteries for humanoids in 2027.

Sources & Further Reading