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Summer · April – June
The service should be hands-on — not just a look at the inverter display. Ask the technician to run through this list; a proper visit takes 30–45 minutes.
These labour rates are what Solve24 electricians and inverter specialists actually charge across metros and Tier-2 cities. Replacement battery hardware is separate.
| Service | Cost 2026 (₹) | Notes |
|---|---|---|
| Pre-summer inverter check-up | 300 – 800 | Water + terminals + load test |
| Inverter + battery full setup | 1,000 – 2,500 | Labour, hardware separate |
| Battery water top-up only | 150 – 400 | Distilled water included |
| Terminal clean + jelly | 100 – 300 | Quick job |
| Inverter PCB / SMPS repair | 600 – 2,000 | When inverter does not switch |
| New battery fitting (buyer supplies) | 200 – 500 | Labour only |
| Old battery disposal + swap | 200 – 500 | Plus exchange value on old |
| Stabiliser + wiring for inverter line | 400 – 1,000 | When line trips MCB |
Batteries do not usually die overnight. They give clear warnings 2–4 weeks before they stop holding charge. Catch it early and a ₹200 water top-up can add 6–12 months of life; miss it and you buy a ₹9,000–₹18,000 new battery.
The industry average life for a home lead-acid battery is 3–4 years, but 5 years is achievable with basic care. Two rules matter most: never let the water drop below the lower mark, and never leave the battery in a discharged state for more than 24 hours.
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A pre-summer inverter and battery check-up costs ₹300–₹800 in 2026. This covers water top-up, terminal cleaning, output test and load run. Full new-setup labour is ₹1,000–₹2,500, hardware separate.
3 to 5 years for a home lead-acid battery. Well-maintained (yearly service, timely water) — 4 to 5 years. Neglected — 2 to 3 years. Tubular batteries typically last a year longer than flat-plate.
March or first week of April. Summer AC-and-cooler load doubles the demand on the inverter; a small unfixed fault becomes a 45°C failure by mid-May.
Every 45–60 days in summer, 90 days in winter. Use distilled water only — tap water leaves mineral deposits that shorten battery life by up to 12 months.
Repair if the PCB or SMPS is faulty (₹600–₹2,000) on an inverter under 6 years old. Replace if the inverter is 8+ years old, or if repair cost exceeds a third of a new inverter (₹4,000–₹9,000).
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