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XL Batteries

Energy Infrastructure

XL Batteries is an innovative energy storage company specializing in the development of low-cost, safe, and efficient long-duration energy storage solutions. Utilizing proprietary organic flow battery technology, XL Batteries addresses critical energy challenges by reducing reliance on scarce materials and specialized infrastructure. This approach enhances grid resilience and supports energy independence, making it a leader in the long-duration energy storage sector. Founded by Columbia University scientists, the company serves grid operators, independent power producers, data centers, and heavy industries.

Leadership & Board

Latest Estimated Valuation

Estimated Valuation: ―
Total Amount Raised: $8M
Total Funding Rounds: 1
Latest Funding Amount: $8M
Latest Funding Round: Investment
Post-Money Valuation: ―

Funding Round

Funding Date	Funding Round	Amount Raised	Post-Money Valuation
Sep 17, 2025	Investment	$7.50M	―

Investors

Investor Name	Funding Round
Merrin Investors	Investment

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