Everything we know about choosing, sizing, running and re-batterying an APC UPS, in one place. Start with your setup if you know what you are protecting, or with a calculator if you do not.

Not sure where to start?
Tell us what you want to protect and we will size it for you — message us on WhatsApp or call +91 95133 93373. No obligation, and you will get a model recommendation rather than a sales pitch.

Which UPS for your setup

Load tables, VA sizing and the genuine APC units we stock for each job.

UPS for Servers & Server Racks1 kVA online UPS and up UPS for Gaming PCsAPC Back-UPS 1100VA and up UPS for Desktop PCsAPC Back-UPS 600VA and up UPS for CCTV & DVR SystemsAPC Back-UPS 600VA and up UPS for Wi-Fi Routers & ModemsAPC Back-UPS 600VA and up UPS for Home OfficesAPC Back-UPS 600VA and up UPS for Billing & POS CountersAPC Back-UPS 600VA and up UPS for NAS & NetworkingAPC Back-UPS 600VA and up

All sizing guides »

Calculators

Work it out yourself in under a minute.

UPS Size Calculator — What Size UPS Do I Need?UPS Runtime Calculator — How Long Will My UPS Last?VA to Watts Calculator for UPS Systems

Batteries and replacements

Every UPS outlives its first battery. Find the exact cartridge yours takes.

Instant quotation builderGST, freight and a numbered PDF in about a minute Battery FinderEnter your model, see the battery and live price Battery replacement chartModel-by-model compatibility

Battery pages by UPS model:

Shopping to a budget

Live prices and stock, GST inclusive.

Installation, AMC and repair

For when you already own the hardware.

UPS Installation & CommissioningSiting, connection, battery fitting, load check and shutdown-software setup, handed over working.UPS AMC & Preventive MaintenanceScheduled preventive visits, battery health checks and priority response for business-critical power.UPS Repair & TroubleshootingDiagnosis first — because most "faulty UPS" calls turn out to be a battery at the end of its life.

All services »

How APC compares

Where each brand is aimed, and when we would tell you to buy the other one.

Guides and troubleshooting

Practical answers, written for Indian power conditions.

Buying in your city

Delivery times and coverage across India.

Who writes this

The technical guidance here is written and reviewed by Subrahmanya S Hegde, senior engineer, with 30 years of hands-on experience with APC UPS systems.

Still stuck?

Send your equipment list on WhatsApp, request a business quote, or read the frequently asked questions.

UPS Knowledge Centre — Guides, Calculators & Battery Help