Up to $150,000,000
Common Stock
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We have entered into a sales agreement dated as of May 5, 2026 (the "Sales Agreement"), with Roth Capital Partners, LLC as agent ("Roth"or the "Agent")relating to the sale of shares of our common stock, par value $0.0001 per share, offered by this prospectus supplement and the accompanying prospectus. In accordance with the terms of such Sales Agreement, we may offer and sell shares of our common stock having an aggregate offering price of up to $150,000,000 from time to time through the Agent, acting as our agent or principal.

Our common stock is listed on the NYSE American ("NYSE") under the symbol "BATL." On April 29, 2026, the last reported sale price of our common stock on NYSE was $3.93 per share.