P91-1500 vs WattBox WB-OVRC-OLUPS-1500-1
The P91-1500 and WattBox WB-OVRC-OLUPS-1500-1 are both true online double-conversion VRLA UPS delivering continuous sine-wave output for network, IT, AV, and edge infrastructure. The P91-1500 differentiates with far more built-in receptacles, a shallower and lighter chassis, full TAA compliance, and longer battery warranty.
What the P91-1500 brings
- Eight built-in receptacles vs one – no external PDU needed
- Shallower depth (15.1 in vs 20.0 in) for shallow / wall-mount racks
- Lighter chassis (34.2 lb vs 43 lb)
- Full TAA compliance for regulated procurement
- Longer battery warranty (3 yr vs 2 yr)
Side-by-side specifications
| Specification | Xtreme Power P91-1500 | WattBox WB-OVRC-OLUPS-1500-1 | Advantage |
|---|---|---|---|
| Capacity | 1500 VA / 1450 W | 1500 VA / 1450 W | Comparable capacity |
| Topology | Online double-conversion | Online double-conversion | Equal topology |
| Battery chemistry | VRLA | VRLA | Similar chemistry |
| Built-in receptacles | (8) NEMA 5-15R | (1) NEMA 5-15R | P91 – many more outlets, no PDU |
| Depth | 15.1 in | 20.0 in | P91 – shallow / wall-mount fit |
| Weight | 34.2 lb | 43 lb | P91 – lighter |
| Battery design life | 3–5 years | 3–5 years | Comparable |
| TAA compliance | Yes | No | P91 – federal procurement |
| Battery warranty | 3 years | 2 years | P91 – longer coverage |
Specifications from Xtreme Power’s supplied P91-1500 vs WattBox WB-OVRC-OLUPS-1500-1 comparison; confirm against current vendor documentation. The WattBox provides one built-in outlet and is designed around external distribution / OVRC management.
Choosing between them
Both deliver equivalent online VRLA protection at comparable capacity. The P91-1500 leads decisively on built-in outlets (8 vs 1), depth, weight, TAA, and battery warranty; the WattBox fits Snap One / OVRC-managed AV ecosystems.
Choose the P91-1500 if you need
- Edge, IDF, and AV deployments with limited rack depth
- Multiple built-in receptacles without external PDUs
- Federally funded and TAA-restricted procurement
- Lighter equipment for easier mounting and service
The WB-OVRC-OLUPS-1500-1 may fit if you need
- Existing WattBox / Snap One (OVRC) ecosystem deployments
- AV-centric installs standardized on OVRC management
- Non-TAA projects with limited outlet requirements
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