DRAFT For comment and suggestions

Pack costs are $1000-1200/useful-kWh in quantities of 100s of packs, making a 5 useful-kWh pack cost $5000-6000, near the cost for the same quantity of Li-ion packs. Due to product maturity and high materials vs. manufacturing costs, higher volumes and future developments are not expected to reduce costs more than 20% or so. ................
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