Battery Charging Calculators

Fine‑tune every charge with confidence. Our Battery Charging Calculators put Eagle Eye Power Solutions’ field‑proven formulas at your fingertips, helping you adjust float voltage for temperature, size rectifier capacity, and estimate recharge times for any 24‑, 48‑, or 125‑volt string. Whether you’re commissioning a new substation bank or troubleshooting ripple on a telecom shelf, these tools crunch the numbers instantly and reference IEEE/NERC best practices, so you can spend less time in spreadsheets and more time keeping power online.

Charging‑Voltage Compensation Calculator

Adjust your float set‑point in seconds.

Enter your battery’s current temperature, reference voltage, and temperature‑compensation coefficient; the calculator returns the corrected charging voltage per cell (Vcomp). Ideal for technicians fine‑tuning 24‑V or 60‑cell strings to match IEEE and manufacturer specs.

Use negative for float; positive below 25 °C.

Eagle Eye Power Solutions battery chargers feature automatic battery temperature compensation. If this feature is enabled on a charger, please do not manually adjust the charger float voltage to compensate for battery temperature. This calculator should be used for validation purposes only.

All batteries have temperature compensation limits where the float voltage should no longer be adjusted if the battery temperature exceeds these limits. Please refer to the battery manufacturer’s documentation to find the temperature compensation limits for your particular battery model.

BC-2500 AC Current Draw at Maximum Output Calculator

This calculator estimates the maximum AC input current your BC-2500 charger will draw at the source so you can confidently size breakers, wiring, and upstream protection. Enter your battery DC voltage (which presets the watts per iPM), the number of iPMs in your charger, and your single-phase input voltage; the tool applies a 10% efficiency factor and computes.

You’ll also see the step-by-step math for transparency and you can override defaults if your configuration differs.

Selecting a DC voltage presets the iPM wattage and allowable iPM count.
Override if needed. Default: 130/48 V → 480 W, 24 V → 400 W.
Common values: 120, 208, 240.
Per spec: multiply by 1.10 before dividing by VAC.

Formula: IAC = (#iPM × iPM_Watts × Overhead) ÷ VAC. Adjust defaults if your configuration differs.

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