Written and reviewed by Subrahmanya S Hegde — Senior Engineer, 30 years with APC UPS systems.

Buying an APC extended warranty or WBEXTWAR/WEXTWAR pack is only half the job done. Thousands of Indian buyers purchase a warranty extension and then never register it correctly — and when the UPS actually fails two years later, the claim gets rejected because the pack was never activated against the UPS serial number. If you’ve just bought (or are about to buy) a warranty extension pack, here’s exactly how the registration process works, what documents you need, and the mistakes that quietly void coverage.

APC Back-UPS 1100VA that needs its serial number registered against a warranty extension pack — Every warranty extension pack must be linked to the exact UPS serial number — not just the model name.

Why Registration Is a Separate Step (Not Just a Purchase)

An APC extended warranty pack is sold as a standalone SKU — it doesn’t automatically

Shop what this guide covers

APC Back-UPS — for home & small officeLine-interactive UPS for desktops, Wi-Fi routers, CCTV and billing machines.
APC extended warranty packsExtend cover on your UPS by 1 to 3 years, registered to your serial number.

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