Should You Buy InoBat Before the SPAC Merger Closes?
InoBat, a European battery energy storage systems and battery technology company, is going public through a merger with Cartesian Growth Corp II (REEUF). The deal values InoBat at $1.265 billion and includes $77.5 million of committed capital, but shareholders should watch redemption risk, dilution, and whether the company can scale from pilot production to commercial execution.
InoBat, a European battery energy storage systems and battery technology company, is going public through a merger with Cartesian Growth Corp II (REEUF). The deal values InoBat at $1.265 billion and includes $77.5 million of committed capital, but shareholders should watch redemption risk, dilution, and whether the company can scale from pilot production to commercial execution.
Deal at a Glance
SPAC partner: Cartesian Growth Corp II
SPAC ticker (trades now): REEUF
Implied valuation: $1.265B EV
Expected close: late 2026
Est. first trading date: late 2026
Deal status: Announced
Source filing: SEC 425 (2026-07-27)
Company Overview
InoBat is a European battery technology and manufacturing company focused on battery energy storage systems (BESS) and battery cell technology. It says it combines intellectual property, R&D, and vertically integrated manufacturing to serve energy security, grid stability, and e-mobility use cases. The company says it was established in September 2019, while its history page says InoBat Auto was founded in February 2020. It is headquartered in Voderady, Slovakia, where it lists its HQ, R&D, and production centre.
The company’s disclosed scale is still early, but not purely conceptual: InoBat says it has contracted or delivered 875 MWh of utility-scale BESS across Europe. Its product mix also includes sodium-ion battery development and low-voltage automotive batteries as an alternative to lead-acid. The market backdrop is supportive, at least on paper: InoBat’s investor presentation says Europe’s annual utility-scale BESS installations are expected to multiply over four years, driven by electricity price volatility, renewable penetration, supportive policies, and revenue stacking opportunities.
The SPAC Deal
InoBat is merging with Cartesian Growth Corp II, a SPAC that currently trades under the ticker REEUF. The business combination agreement values InoBat at $1.265 billion in aggregate, and the company press release describes that as about €1.1 billion on a pre-money, pre-merger basis. That is a meaningful valuation for a company that is still scaling from pilot and industrial-scale manufacturing into broader commercial rollout, so the market will likely focus on whether the operating plan can justify the earn-out structure.
The deal has several de-SPAC mechanics retail investors should watch. The filing materials reviewed do not disclose the trust balance at announcement, but Cartesian II’s 2025 10-K showed $37,914,438 in trust as of Dec. 31, 2025, after prior redemptions of 4,173,618 shares for about $51.2 million. The transaction has no minimum-cash condition to closing, which lowers formal deal-break risk but increases the odds that the post-close company starts with limited cash support. The deal also includes $77.5 million in new capital committed by institutional investors and InoBat’s current shareholders, but the accessible filing excerpts do not name those investors. On dilution, the sponsor, CGC II Sponsor LLC, owned 5,649,999 Class A shares and 1 Class B share as of the agreement date, and the SPAC’s public units include one-third of one public warrant per unit exercisable at $11.50. The merger docs also include earn-out shares worth up to $690 million, which is a large potential dilution overhang if milestones are met. The expected close is not yet scheduled in the materials reviewed; status is announced, not closed. The combined company is expected to seek Nasdaq listing, but no post-merger ticker has been disclosed yet. Based on the current filing cadence, the first trading window looks like late 2026 if the vote and SEC review proceed without delay.
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The obvious reason to use a SPAC here is speed and flexibility. InoBat gets a public listing path with committed capital already attached, plus the ability to present forward-looking projections in the merger materials, which is often a key advantage versus a traditional IPO for companies still in the build-out phase. The company is also trying to fund expansion into BESS, sodium-ion, and low-voltage automotive batteries while positioning itself for demand tied to AI infrastructure and hyperscale data centers.
The proceeds are meant to support growth, not just provide liquidity. InoBat is effectively using the de-SPAC to finance commercialization, manufacturing scale-up, and project execution. The sponsor backing and institutional commitments help, but the lack of a minimum cash condition means the final capital stack will still depend on how many public shares are redeemed before closing.
Financial Highlights
The disclosed materials are light on historical financials. InoBat’s investor deck includes forward-looking projections, but the accessible text reviewed does not provide a full historical revenue, gross margin, or net loss table. The presentation explicitly says the projections are illustrative only, based on assumptions that may not materialize, and are not audited or reviewed by independent auditors.
What is disclosed is more operational than financial. InoBat says it has contracted or delivered 875 MWh of utility-scale BESS across Europe, and the deal’s earn-out structure points to a management case built around future EBITDA growth. The earn-outs are tied to €47 million of EBITDA in FY2026 or FY2027 and €87 million in FY2027 or FY2028, which implies a fairly aggressive ramp. The filing excerpts reviewed do not disclose InoBat’s cash balance, runway, or historical loss trajectory, so shareholders should treat the growth case as a projection-heavy story rather than a fully proven financial profile.
Risk Factors
The biggest de-SPAC-specific risk is redemption pressure. Cartesian II’s trust was only $37.9 million as of Dec. 31, 2025, and the company already saw 4.17 million shares redeemed for about $51.2 million in a prior extension vote. If redemptions are heavy again, the post-close company could end up with far less cash than headline deal terms suggest. The no minimum-cash condition means the merger can still close, but that also means the cash outcome for the operating company may be thin.
Dilution is another major issue. The sponsor promote, public warrants, private placement warrants, lockups, and especially the earn-out shares can all add to the share count. On the business side, InoBat is still moving from pilot and validation into commercial scale, so execution risk is high. It is also competing in a crowded field against larger, better-capitalized battery and storage players. Finally, the projections in the deck are not audited, so the market will need to see actual orders, deliveries, margins, and cash generation before assigning a premium multiple.
Comparable Public Companies
A reasonable public comp set includes Fluence Energy (FLNC), Tesla (TSLA), Enphase Energy (ENPH), LG Energy Solution (373220.KS), and CATL (300750.SZ). These are not perfect matches, but they frame the market for grid storage, battery manufacturing, and adjacent energy hardware. InoBat’s own materials also point to Clarios and Altris as competitive references in low-voltage batteries and sodium-ion.
As a group, the public comps span very different business models and valuation regimes, which is part of the challenge here. FLNC and ENPH are more directly tied to energy storage and power electronics, while TSLA and CATL bring scale, manufacturing depth, and broader battery exposure. The market has generally rewarded companies with proven volume, recurring demand, and visible margins, while punishing names that are still in commercialization mode. That is the key lens for InoBat: the setup favors proof of execution over story alone.
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This is a classic de-SPAC setup where the headline valuation is only part of the story. InoBat is pitching a real market opportunity in European BESS and sodium-ion batteries, and the $77.5 million in committed capital helps, but shareholders should watch the final redemption count, the actual cash delivered at close, and how much dilution comes from warrants and earn-outs. Those mechanics will matter as much as the $1.265 billion valuation.
Why this matters now: the deal is announced but not closed, and the market still has time to reprice the transaction based on financing quality and execution credibility. If the company can show that 875 MWh of contracted or delivered BESS is a foundation for scalable growth, the story can work. If redemptions are heavy or the commercialization timeline slips, the valuation will look much harder to defend. The key question is not whether InoBat has a market, but whether the post-merger capital structure leaves enough room to capture it.
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