Agility Robotics names Nyobolt as the battery provider for Agility Digit 5, and its prospectus calls the battery proprietary

Agility Robotics named Nyobolt, a battery company based in Cambridge in the United Kingdom, as the technology provider for the battery in its Agility Digit 5 humanoid robot on October 15, 2026. The joint press release says the new battery gives 90 minutes of runtime and charges in 9 minutes, a run to charge ratio of 10 to 1, up from 2 to 1 on Digit 4. Both companies posted the same text on their own sites, and Agility sent it out on PR Newswire at 07:00 Eastern time. The figures are Agility’s claims about a robot that is still in development, and Onticpost has no Digit hardware, so nothing below is a measurement of ours.

Takeaway points

• Agility Robotics said on October 15, 2026, that Nyobolt supplies the battery technology for Digit 5, which the company says runs for 90 minutes and charges in 9 minutes.
• Agility’s own Digit 5 page calls its specifications “preliminary estimates” from internal testing of pre-production hardware, and the release’s fine print names Nyobolt as the “exclusive provider” of the battery technology, a supply risk the main text leaves out.
• Neither company has published the battery’s capacity, chemistry, weight or cycle life, no independent test of the charge time exists, and we have not tested Digit 5.

What did Agility Robotics announce about Nyobolt and Agility Digit 5?

Agility Robotics announced that Nyobolt is “the technology provider to Agility” for the fast recharge battery system in Digit 5. The release, datelined Salem, Oregon, and Cambridge, United Kingdom, calls the battery one of Digit 5’s “most significant upgrades” and ties it to one claim above all others: that the robot can work more than 20 hours in a 24 hour day.

Digit 5 itself is not new. Agility unveiled it on September 15, 2026, as the fifth generation of its humanoid, a robot built to work close to people without the fixed safety barriers used around factory machines. That earlier release already carried the battery figures, 90 minutes of runtime and a 9 minute charge. It did not name a supplier. The October release adds the name, two quotes and a sentence on availability.

The two people quoted are Daniel Diez, Agility’s Chief Business Officer, and Sai Shivareddy, Nyobolt’s co-founder and chief executive. Diez said: “For our customers, Digit’s uptime is the business case.” Shivareddy said Nyobolt was chosen because Digit 5 “will need more power from a smaller, lighter pack”. Neither quote gives a figure for the pack.

Nyobolt describes itself in the release as a company founded in 2019 that combines its own anode materials, cell design and power electronics. The release does not say which of those Digit 5 uses, or where the cells are made.

The timing matters for Agility’s other business. The release says Agility is preparing to become a public company through its merger with Churchill Capital Corp XI, expected to close in the fourth quarter of 2026, after which the company would trade on Nasdaq as “AGLT”. The registration statement for that deal was declared effective by the Securities and Exchange Commission on October 13, two days before this announcement. We reported earlier on what that filing showed in Agility Robotics Digit earned $1.78 million in 2025, its merger filing with Churchill Capital Corp XI shows.

How fast does Digit 5 charge, according to Agility?

Agility says Digit 5 charges in 9 minutes after 90 minutes of work. These are the company’s figures, repeated in the September release, the October release and the final merger prospectus filed with the Securities and Exchange Commission on October 13. The table sets them beside what the same documents say about Digit 4, which the prospectus calls Digit v4.

The new battery does not run longer. On Agility’s own numbers, Digit 4 ran for four hours on a charge and Digit 5 runs for 90 minutes. What changes is the time spent charging. Our arithmetic, from Agility’s ratio and nothing else: a 2 to 1 ratio with a four hour run implies a two hour charge, and a robot that only works and charges would then work 16 hours in 24. At 90 minutes on and 9 minutes off, the same sum gives about 21.8 hours in 24. That is consistent with the “more than 20 hours” claim, but only if nothing else stops the robot: no faults, no maintenance, no waiting for a free charger. The release does not say how many chargers a fleet needs or how a robot reaches one.

The payload figure is given two ways. The September release says 50 lb, or 22.7 kg. Agility’s Digit 5 page says 23 kg, or 50 lbs. The difference is rounding.

Is the Digit 5 battery Agility’s own design or Nyobolt’s?

Agility’s documents describe it both ways. The final merger prospectus of October 13 lists a “Proprietary Fast-Charge Battery System” among Digit 5’s advances, and names “battery technology” among the systems Agility “has developed, or secured exclusive rights within the humanoid robotics sector to”. The prospectus does not mention Nyobolt anywhere in its text. Two days later, the press release names Nyobolt as the technology provider.

The two can both be true. The prospectus wording covers technology Agility licenses on exclusive terms as well as technology it builds. But a reader of the prospectus alone would not learn that the battery depends on an outside company. The press release says so only in its legal section, where the list of risks includes “the Company’s reliance on Nyobolt as the exclusive provider of battery technology for Digit 5, and the risk that Nyobolt may be unable to supply battery systems in the quantities, at the quality or on the timeline required”.

The same fine print lists “the exclusive nature of such relationship” among the expected benefits. The word exclusive does not appear in the release’s main text, and the release does not say who holds the exclusivity, for how long, or on what terms.

The prospectus already warns about suppliers in general. Its risk factors say Agility depends on “single- or limited-source suppliers” for parts that include battery cells, actuators, sensors and computing hardware, and that it “may be unable” to find replacements in the short term. The October release puts a name to one of those dependencies.

When will Digit 5 with the Nyobolt battery be available?

Agility says early access to Digit 5 with Nyobolt’s battery is expected to begin in the first half of 2027. After that, the October release says, availability will increase “over the following six to nine months” for manufacturing, warehouse and distribution operators.

The September release put it differently. It gave the same start, early access in the first half of 2027, and then “general availability” by the end of 2027. The October wording drops the phrase general availability and gives a span of months instead. Counted from the end of the first half of 2027, six to nine months runs to between December 2027 and March 2028. Counted from an earlier start, it ends sooner. The release does not say which, and the two documents do not plainly contradict each other, but the October text no longer commits to the end of 2027.

Neither release gives a price. The merger prospectus does not give a list price either; it gives illustrative unit economics, in which a customer buying a robot outright pays approximately $200,000 upfront, or pays a monthly fee of $8,500 under the robots as a service model. The prospectus calls these figures illustrative and says they rest on “management assumptions that may prove incorrect”.

What has Agility not published about the Digit 5 battery?

Agility and Nyobolt have not published the battery’s energy capacity, its chemistry, its weight, the charging power needed for a 9 minute charge, or how many charge cycles it lasts. The release says Nyobolt’s technology combines “exceptional cycle life” with “reduced system weight”, and gives no number for either.

The runtime and charge figures carry Agility’s own warning. The Digit 5 page states that “Digit 5 is in development and the features, specifications, capabilities, and designs shown are subject to change”, and a footnote calls the product specifications “preliminary estimates based on internal testing and benchmarking of pre-production hardware and software configurations”. No outside body has published a test of the charge time, and neither company has said under what load or temperature the 90 minutes was measured.

Agility’s record so far is with Digit 4. The September release says Digit 4 has logged more than 65,000 hours of operation at customer sites that include GXO, Schaeffler, Amazon and Toyota Motor Manufacturing Canada. None of those hours were run on the new battery. Other humanoid makers are at their own stage of moving from trials to plants, as in Boston Dynamics Atlas robots start training at a new center inside Hyundai’s Georgia plant.

We have not tested Digit 5, its battery or its charger. What we can report is what the two companies’ release, Agility’s Digit 5 page and the merger prospectus say, and where they differ: the battery described as proprietary in one filing and as Nyobolt’s two days later, an exclusive supply arrangement mentioned only in the legal text, and an availability date that has moved from a fixed point to a span of months.