M90U-80 vs Vertiv Liebert APM2 208V
The Xtreme Power M90U-80 supports up to 80 kW within a single cabinet with integrated internal battery options and a standard maintenance bypass. The Vertiv Liebert APM2 208V supports modular configurations up to 60 kW in internal-battery configurations, with additional scalability depending on frame size. For applications requiring higher usable capacity and longer internal runtime at load, the M90U-80 delivers stronger scalability and service integration.
What the M90U-80 brings
- Higher maximum usable capacity (single cabinet).
- Longer internal runtime at high load.
- Integrated maintenance bypass as standard.
- Fully modular architecture including the static switch.
- Longer standard warranty coverage.
Feature comparison
| Specification | Xtreme Power M90U-80 | Vertiv Liebert APM2 208V | Advantage |
|---|---|---|---|
| Capacity range | 15–80 kW | 10–60 kW | Higher maximum capacity |
| Max capacity (single cabinet) | 80 kW (internal batteries) | 60 kW (internal batteries) | More usable power (internal config) |
| Internal battery chemistry | VRLA | VRLA or lithium-ion | Vertiv adds a lithium-ion option |
| Hot-swappable modules | Power & battery modules | Modular building blocks | Equivalent serviceability |
| Internal runtime @ 60 kW | 9 min (16 batt. modules) | 4 min | Longer runtime |
| Internal runtime @ max load | 6 min @ 80 kW | Not available (60 kW max) | Runtime at higher capacity |
| Maintenance bypass | Integrated, standard | Optional | No added cabinet required |
| Cabinet width | 23.6 in | 23.6 in | Equal footprint |
| Warranty | 2-year parts | 1-year standard | Longer coverage |
Scoped to internal-battery configurations, the M90U-80 offers higher capacity (up to 80 vs 60 kW) and longer internal runtime (9 vs 4 min at 60 kW), with a standard integrated bypass; the APM2 offers a lithium-ion battery option and comparable hot-swap serviceability, and scales further with larger frames. Cabinet width is equal and the M90U-80 carries a longer warranty term. Confirm Liebert APM2 specifications against current Vertiv documentation.
Choosing between them
Choose the M90U-80 for a modular online UPS up to 80 kW with longer internal runtime at load, an integrated bypass, and higher usable capacity per cabinet; the Liebert APM2 fits sites capped at 60 kW, wanting lithium-ion battery configurations, or standardized on Vertiv.
Choose the M90U-80 if you need
- Modular online UPS up to 80 kW
- Longer internal runtime at load
- Integrated maintenance bypass
- Higher usable capacity per cabinet
The Liebert APM2 208V may fit if you need
- Capacity limited to 60 kW
- Lithium-ion battery configurations
- Alignment with the Vertiv ecosystem
Related comparisons
Plan your high-density modular UPS deployment
Talk to an Xtreme Power specialist about sizing the right M90U-80 configuration and runtime architecture, planning N+1 redundancy and phased capacity expansion, and comparing modular three-phase platforms for data center, healthcare, industrial, and critical-infrastructure environments.