Model battery wear for fleets and tools. Adjust depth, temperature, charging losses, and yearly demand. Forecast replacements confidently before downtime affects critical project schedules.
The page uses a single-column content flow, while the calculator itself switches to three columns on large screens, two on smaller screens, and one on mobile.
Adjusted Cycle Life = Nominal Cycle Life × DoD Factor × Temperature Factor × Efficiency Factor × Safety Factor
This calculator starts with the selected chemistry’s reference cycle life, then adjusts it for depth of discharge, temperature stress, charging efficiency, and a user-defined reserve margin.
DoD Factor = (Reference DoD ÷ Actual DoD)Exponent
A lower operating depth of discharge usually improves cycle life. The exponent changes by chemistry to reflect different wear sensitivity.
Equivalent Full Cycles per Year = Daily Cycles × Operating Days × (Actual DoD ÷ 100)
Partial cycles are converted into full-cycle equivalents, which gives a more realistic annual usage rate for construction planning.
Service Life Years = Adjusted Cycle Life ÷ Equivalent Full Cycles per Year
Usable kWh per Cycle = Capacity Ah × Voltage × DoD × Battery Count ÷ 1000
Lifetime Energy Throughput = Usable kWh per Cycle × Adjusted Cycle Life
| Application | Chemistry | Capacity (Ah) | Voltage (V) | Average DoD | Temperature | Daily Cycles | Estimated Life |
|---|---|---|---|---|---|---|---|
| Site lighting tower | LiFePO4 | 200 | 48 | 80% | 30°C | 1.2 | Approx. 8.8 years |
| Electric mini loader | Lithium NMC | 300 | 72 | 85% | 35°C | 1.6 | Approx. 4.1 years |
| Backup power trailer | AGM Lead-Acid | 400 | 24 | 50% | 25°C | 0.6 | Approx. 6.5 years |
Battery cycle life is the estimated number of charge and discharge cycles a battery can complete before its capacity falls to a chosen end-of-life threshold, often 80% of its original rating.
Deeper discharges usually increase internal stress and shorten usable life. Shallower cycles often let the same battery deliver more total cycles over time, especially in construction fleets with predictable duty patterns.
Higher temperatures generally accelerate aging, while cooler conditions can reduce performance. This calculator applies a temperature factor so hot worksites, battery enclosures, and summer storage conditions reduce the estimated cycle result.
No. Cycle life tracks usage-based wear, while calendar life tracks aging over time regardless of use. A lightly used battery can still degrade due to storage temperature, chemistry, and charging habits.
It depends on budget, duty cycle, and charging strategy. LiFePO4 usually offers strong cycle life and stability, while lead-acid options can work where lower initial cost matters more than lifetime throughput.
A reserve reduces the optimistic estimate and helps planners build in field uncertainty. It is useful when temperature swings, charging quality, dust, vibration, or operating abuse may shorten real service life.
Yes. This calculator converts partial use into equivalent full cycles. That makes it more useful for worksite batteries that are topped up during breaks instead of always completing full daily cycles.
Use it for planning, budgeting, and replacement forecasting. Warranty decisions should still rely on manufacturer documents, logged operating data, approved charging methods, and any jobsite environmental conditions listed by the supplier.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.