APC Symmetra LX Is Discontinued: Keep It Running or Replace It?

Guide · GreenlightUPS

What "discontinued" actually means for the Symmetra LX

Schneider Electric has two dates for each model:

• End of commercialization is the last day APC takes an order for a new unit. Schneider's product pages now show Symmetra LX models as discontinued, with dates that vary by model (for example, SYA16K16P on Aug 8, 2026 and SYA12K16P on Oct 8, 2026).
• End of standard service is the last day the manufacturer will repair the model or supply spare parts. That date comes much later. The SYA12K16P, for example, lists end of standard service on Oct 8, 2036.

In plain terms: the Symmetra LX is out of production, but it isn't unsupported. Replacement parts are also widely available outside the factory, and that's where an independent shop like GreenlightUPS comes in.

Why so many Symmetra LX systems are still in service

The LX was built to be kept, not thrown away. It's a double-conversion online UPS for single-phase loads, in 8kVA and 16kVA frames, tower or rack, with 120/208V or 120/240V output. Everything that wears out slides in and out of the front:

• SYBT5 battery modules, hot-swappable while the UPS keeps running
• SYPM4KP power modules (4kVA / 3200W each), added in 4kVA steps for capacity or N+1 redundancy
• The intelligence module (symim5), the controller that runs the system

Because the parts that wear out are all replaceable, a Symmetra LX with fresh batteries and good modules can keep protecting servers, phone systems and lab equipment for years after APC stops selling it.

Option 1: Keep your Symmetra LX running

This is usually the lowest-cost, lowest-risk option if the frame is healthy and your load hasn't outgrown it.

Batteries. Batteries are the part that fails most often in any UPS. Plan on replacing SYBT5 modules about every 3 to 5 years in a cool room, and sooner in a warm one (our UPS battery replacement guide explains why heat matters so much). Replace the modules the UPS reports as faulted. Our refurbished SYBT5 modules are refurbished trays fitted with brand-new batteries and tested before they ship, and a factory-new SymmTools SYBT5 is also available.

Battery communication boards. Each SYBT5 has a small board that talks to the UPS. When a board fails, the module can be rejected even if the batteries are fine. We build new SYBT5 boards in-house (SY5PLUS), and if you'd rather keep your original boards, ship them to us and we'll reprogram them. Very few companies anywhere do this work, and it's one of the main reasons an LX can stay in service long after the factory moves on.

Power modules. If the UPS flags a power module fault, or you lose redundancy, swap in an SYPM4KP. Our refurbished power modules are broken down, checked, rebuilt and tested in-house, and carry a 1-year GreenlightUPS warranty. Individually sold power modules are core exchange: we ship you the module with a return label, and you send your old one back. A New Open Box SYPM4KP is also listed.

Intelligence module. The symim5 is refurbished, carries a 1-year warranty, and is also sold as a core exchange part.

Full revitalization package. If several parts are aging at once, we can revitalize the whole system in one go. We supply a complete set of upgraded parts as a package: SYBT5 battery modules with brand-new batteries, SYPM4KP power modules and a symim5 intelligence module. Your LX gets fresh batteries and rebuilt modules for far less than a new platform, and you deal with one supplier and one order. Our technicians can install the package for you as part of a service visit.

More runtime. If you need more battery time rather than more capacity, an extended-run frame such as the SYARMXR9B9 13U cabinet adds battery slots. The frame is sold on its own, with SYBT5 modules as an add-on.

Maintenance. A preventive maintenance visit once or twice a year catches weak batteries, failing fans and module faults before an outage does. Our technicians service Symmetra LX systems nationwide, including units bought elsewhere. See APC Symmetra service.

Option 2: Replace it with another Symmetra LX

If your LX frame is damaged, or you want a second system for another room, a refurbished or New Open Box LX is often the fastest and cheapest swap. It uses the same footprint, wiring, modules and spares you already know, so there's nothing to redesign.

Every UPS we sell, New or Refurbished, gets brand-new batteries and is load tested before it ships, and complete UPS units carry a 1-year GreenlightUPS warranty. Popular frames include the SYA16K16P tower, the SYA16K16RMP rack and the compact SYA8K8P mini tower. See the full range on our Symmetra LX page.

Option 3: Move to a current platform

When it's time to leave the LX behind, there are two realistic paths.

Whichever way you go, size the new UPS from your real load, not the LX's nameplate. Many LX systems were bought with room to grow that was never used, and others now run at the edge. Our UPS sizing guide walks through it, and our installation team can handle the swap.

How to decide

Before you call: what to have ready

FAQ

Is the APC Symmetra LX discontinued?

Yes. Schneider Electric has discontinued the Symmetra LX, with end-of-commercialization dates that vary by model (for example, SYA16K16P on Aug 8, 2026). After-sales service and spare parts continue past that date.

What replaced the Symmetra LX?

Schneider lists the lithium-ion Smart-UPS Modular Ultra as the replacement. For sites that don't need internal N+1 redundancy, an APC Smart-UPS SRT 8kVA or 10kVA online UPS is another common choice.

Can I still get batteries and parts for a Symmetra LX?

Yes. GreenlightUPS stocks SYBT5 battery modules, SYPM4KP power modules and symim5 intelligence modules, and we build and reprogram SYBT5 communication boards in-house.

How often should Symmetra LX batteries be replaced?

Plan on about every 3 to 5 years in a cool room, and sooner in a hot one or after frequent outages. Replace the modules the UPS reports as faulted.

Can you service a Symmetra LX I bought somewhere else?

Yes. Our technicians service Symmetra LX systems nationwide, including units bought elsewhere, and ship-in repair is available.

Should I replace my Symmetra LX now?

Not necessarily. If the frame is healthy and your load fits, replacing batteries and any failed modules is usually the lowest-cost option. Plan a replacement when several modules fail at once, your load changes, or you're refreshing the room.