Given the lack of specific pricing information in the document, estimating the budget requires considering the quantity and type of batteries being procured. The base quantity of 1100 EA with an option for up to 1320 EA suggests a significant procurement. The cost of lithium batteries can vary widely depending on their specifications, such as capacity, voltage, and intended application. For high-capacity, specialized batteries like those used in defense applications, the cost per unit can be substantial. Assuming an average cost per battery that reflects a high-capacity, specialized lithium battery (which could range from a few hundred to several thousand dollars per unit, depending on the specifics), the total contract value could range from hundreds of thousands to millions of dollars. For the sake of estimation, if we consider the lower end of the cost spectrum (e.g., $500 per unit for a basic high-capacity lithium battery, which is a very rough estimate and likely too low for specialized batteries), the base contract would be approximately $550,000 (1100 units * $500). With the option, this could increase to about $660,000 (1320 units * $500). At the higher end of the spectrum (e.g., $5,000 per unit, which might be more realistic for highly specialized defense-grade batteries), the contract value would be significantly higher: $5,500,000 for the base (1100 units * $5,000) and up to $6,600,000 with the option (1320 units * $5,000). Therefore, the budget could potentially range from a low of approximately $500,000 to a high of $6,600,000, depending on the actual cost per unit of the specialized batteries being procured.