Battery Life & Cycle Expectancy Calculator
Estimate how many years your inverter battery will survive based on Depth of Discharge (DoD), local power cut frequency, and summer ambient temperatures.
Optimal operating conditions. Keep distilled water topped up at least once every 60-90 days for tubular batteries.
Frequently Asked Questions
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Continue with another electricity or backup-planning tool.
Reference official efficiency and safety guidance from Bureau of Energy Efficiency and standards information from Bureau of Indian Standards.
Calculation Assumptions & Safety
Calculations are planning estimates using the displayed inputs and assumptions, not certified designs or verified provider bills. Actual runtime, generation, cost and wire requirements vary with equipment, installation and operating conditions. Confirm manufacturer specifications and current provider rules. Have a qualified electrician review wiring and backup installations.
Battery cycle-life estimate, not a warranty
An illustrative 1,000-cycle rating at one cycle per day corresponds to about 2.7 years by simple division, before changes due to temperature, discharge profile, calendar aging or actual usage.
How the calculation works
Simple cycle-life years ≈ rated cycles ÷ cycles per year. Temperature and battery chemistry can materially change practical replacement timing.
Compare household scenarios
- 500 cycles at one/day: approx 1.4 years
- 1,000 cycles at one/day: approx 2.7 years
Common questions
- Does a battery last exactly its rated cycles?
- No. Cycle ratings apply to specified test conditions; depth of discharge, heat and calendar aging affect real service life.