Free, no-registration tools to help you estimate battery requirements. All calculations run in your browser — no data is uploaded.
Battery Capacity Calculator
Estimate the battery capacity (Wh and Ah) you need from load power, runtime, voltage and efficiency.
Battery Pack Calculator
Calculate pack voltage, capacity and energy from cell specs and series/parallel configuration.
Note: These tools provide estimates for planning purposes only — not final engineering designs. Always verify with product datasheets and qualified professionals.
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Learn more in our battery knowledge guides.
Choose a calculator below to size your battery system, compare costs, or estimate landed pricing.
Battery Capacity Calculator
Calculate the battery capacity you need for your application.
Battery Pack Configuration Calculator
Configure series/parallel battery pack layouts.
Solar Battery Sizing Calculator
Size your solar battery bank for off-grid systems.
LiFePO4 vs Lead-Acid Cost Calculator
Compare total cost of ownership.
Battery Landed Cost Calculator
Estimate landed cost for battery imports.