UPS Repair &
Battery Replacement Service

On a large UPS, the battery string is the most critical and the most perishable component of the system. Replacing it is not a one-person, one-hour job. It is an on-site procedure: professional replacement, post-installation calibration and certified recycling, for all brands and battery technologies, across Canada. Here is what a professional string replacement actually involves.

It starts with testing. Impedance testing and individual cell voltage measurement identify the weak batteries, load and runtime testing before the swap, and torque and polarity checks on the connections, so the replacement is matched to what the site actually draws, not just to the part number on the old string.

Then matched replacement batteries go in: certified compatible cells or cartridges, with common models in stock for fast turnaround. VRLA, AGM or lithium-ion batteries, matched as a set, installed on-site with a bypass procedure to maintain power during the swap, and the charger is calibrated with a full load test so the UPS trusts its new numbers.

And the old string leaves: removed from site, with certified recycling documentation that certifies where every battery went.

It closes the way every service visit should: with a written report. Photos, measurements, and the new runtime numbers on record.

That is the whole job: test, match, swap, calibrate, document. On-site, in or out of warranty, for single units and mixed-brand fleets: APC and Eaton and Powerware systems, Vertiv Liebert, Tripp Lite and Mitsubishi units. Same-day in Montreal, Quebec City, Toronto and Ottawa, 24 to 48 hours elsewhere, and around the clock when it cannot wait.

If your battery strings are past their date, it is one call to GDF Technologies at 514-252-8324, and the quote comes back within 4 business hours, in French and in English.