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How Much Backup Will Your Battery Really Give? Use the Free Calculator Built on My Lab Tests
Brochure backup numbers fail because they ignore how batteries really behave under load. Kunwer Sachdev explains the free backup calculator at inverterindia.com, built on his own minute-by-minute discharge tests of 150Ah and 200Ah tubular batteries.
Solar PCU LCD Display Messages Explained — Backup Mode, Mains Mode, Faults & Rotary Switch
The LCD on your Solar PCU is telling you something specific every time it shows a message. This guide decodes every display message — backup mode, mains mode, overload, battery low cut, high/low cut, solar mode — plus the three rotary switch positions and what they do.
How to Connect Your Solar PCU to the App: Bluetooth and Wi-Fi Step-by-Step Guide
The BLE and Wi-Fi dongle turns your Solar PCU into a smart system you can monitor and control from your phone. This step-by-step guide covers both Bluetooth and Wi-Fi connection methods — dongle setup, scanning, pairing, OTP login, and adding your device for remote monitoring.
How Solar Hybrid PCU MPPT Works: 4 Real Scenarios Every User Must Know
Most solar PCU users do not realise their system has four distinct operating modes. Kunwer Sachdev — who designed Solar PCUs at Su-Kam — explains each scenario: what triggers it, how the PCU manages solar, grid, and battery together, and why Scenario 4 is the one that actually reduces your electricity bill.
Su-vastika Solar PCU Mobile App: Every Setting Explained by its Creator
Nobody explains their own app, setting by setting. The Su-vastika Solar Hybrid PCU mobile app — on Google Play and the App Store — explained screen by screen by its creator…
Why We Built India’s First Free ERD Battery Sizing Calculator — Zero-Switch Lift Inverter Technology Explained
Su-vastika explains why we built India’s first open ERD sizing calculator at LiftInverter.com. Understand zero-switch 3-phase technology, battery sizing for SMF, Tubular and Lithium batteries, and how lift engineers can specify the right Emergency Rescue Device for any building — free, open, field-tested data from 200+ real installations.
Inverter or UPS Not Working? Troubleshooting Guide: 6 Common Problems & Fixes
Inverter not working? Diagnose the 6 most common inverter/UPS problems from the warning lights — no output, battery-low shutdown, overload, short circuit, mains not sensing and MCB tripping — with step-by-step fixes from Su-vastika's own service manual.
Inverter/UPS Charging Explained: Charger Capacity, Charging Time, ATC & Battery Life
The charging section is the most important part of an inverter/UPS — it decides charging time, battery life and even your electricity bill. Here's how charger capacity, battery type, six-stage charging, ATC and efficiency all work together.
Why Is My Inverter Not Charging the Battery? Causes & Fixes
Inverter not charging the battery? Most causes are simple — a tripped fuse, loose terminal, low mains voltage or a tired battery. Here's how to diagnose and fix every common reason an inverter/UPS stops charging.
Retrofit Lithium Battery Guide: Replace Lead-Acid Without Changing Your Inverter
How to retrofit a lithium battery into your existing inverter without replacing it — compatibility guide, step-by-step process, backup time comparison, and 10-year cost analysis.
Online UPS Systems for Servers & Critical Infrastructure: Complete Guide India
Complete guide to online UPS systems for servers and critical infrastructure in India — double conversion explained, online vs line-interactive vs offline, sizing guide, and three-phase UPS.
Battery Energy Storage Systems (BESS) for Commercial & Industrial India: Complete Guide
Complete guide to Battery Energy Storage Systems (BESS) for commercial and industrial businesses in India — how they work, BESS vs diesel generator, ROI analysis, and sizing guide.