benchmarksutra Power Backup Score: How We Rate Inverters and Batteries
Summary

How benchmarksutra rates inverters and batteries: maker-stated specs and Indian prices only, nothing guessed.

Quick Verdict

The benchmarksutra Power Backup Score rates 7 inverters and batteries sold in India. Every spec comes from the maker's own product page, and every price from an Indian retailer's listing. We never use test results from other sites, and we never fill a gap with a guess.

Researched, not hands-on tested. Scores use only the specifications on each maker's own product page (checked 14 November 2026) and prices at Indian retailers (checked 14 November 2026). We did not test these inverters and batteries ourselves. How the benchmarksutra Power Backup Score works.

What we rate

  • Output waveform. Inverters only. Pure sine wave 100, digital or modified wave 50, square wave 0. Sine wave is safer for fans, fridges and electronics.

  • Load rating (watts). Inverters only. Maker-stated load rating in watts: 600 W rates 0, 1,000 W or more rates 100.

  • Lithium-battery compatible. Inverters only. Lithium-battery compatibility named by the maker: yes 100. Not stated means the row is left out.

  • Free-replacement warranty. Batteries only. Months of free replacement the maker states: 12 rates 0, 48 or more rates 100.

  • Total warranty. Total warranty in months (free + pro-rata for batteries). Inverters: 24 rates 0, 60 rates 100. Batteries: 24 rates 0, 72 rates 100.

  • Price per watt / per Ah. Inverters: price per rated watt. Batteries: price per Ah. Scored against the cheapest of the same type.

Buyer profiles

inv comparison chart by benchmarksutra

What we checked

We read each maker's own product page for VA and watt rating, output waveform, battery compatibility and warranty (for batteries, the split between free-replacement and pro-rata months). Retail listings are used only for the price. Missing rows are left out and the weights re-spread; a product is ranked only if its maker states at least 3 of the rated specs. Inverters and batteries are scored only against their own type.

What we do not rate

Real backup time, charging speed and battery life in cycles need tests. We do not run them and we do not use other sites' results. Pair a 900–1100 VA inverter with a 150 Ah battery for a typical home load of fans, lights, a router and a TV. Use our inverter battery backup calculator to size yours.

Battery warranties usually need registration with the maker within a few days of purchase; keep the invoice.

Price vs score

Inverters and Batteries price in India vs benchmarksutra Power Backup Score

What the score does not measure

  • Real backup time on your load.

  • Battery life in charge cycles.

  • Charging time and efficiency.

  • Service quality in your city.

What we left out, and why

Reason

Products

Maker states fewer than 3 of the 6 rated specs

2

No maker page found for this model

2

Maker page did not load its warranty table

1

Prices change frequently. The prices on this page were correct when we wrote and checked it, but they may have changed by the time you read this. Check the current price on the retailer's page before you buy.

We may earn a commission from some links on this page. It never affects our scores.