Description
APC Back-UPS 250 BD BK250 Uninterruptible Power Supply 250VA No Battery
The APC Back-UPS 250 BD (model BK250) is a compact desktop standby uninterruptible power supply rated at 250 VA. It provides battery backup and surge protection for computer loads, protecting connected equipment from power outages, surges, and line noise. No battery is included with this unit. This UPS requires a specific replacement battery — the battery pictured in one photo is a CSB unit shown as an example of the battery type only and does not ship with this item. The replacement battery may use a proprietary connector specific to this model.
Specifications & What's Included
- Brand: APC (American Power Conversion)
- Model: Back-UPS 250 BD
- Part Number: BK250
- Capacity: 250 VA
- Output Voltage: 170V (as labeled: BK250:170V)
- Form Factor: Desktop / tower standby UPS
- Front panel: Power on/off rocker switch, "Back-UPS 250" model label
- Rear panel: 2 x IEC-style outlet sockets (surge + backup), 1 x NEMA 5-15R outlet
- Input: NEMA 5-15P power cord (attached, present)
- Certifications: CSR LR63938, UL Listed 42C2
- Intended for computer loads only (per rear label)
- Battery: NOT included — requires special replacement battery (may use proprietary connector)
- Includes: UPS unit and attached power cord only — no battery, no software, no manual
Applications
The APC Back-UPS 250 is a standby UPS from APC's entry-level Back-UPS line, designed to protect desktop computers, monitors, and small workstation setups from power interruptions. Standby UPS units like this one pass utility power directly to connected equipment under normal conditions, switching to battery power within milliseconds of detecting a power failure or significant voltage sag. The Back-UPS 250 was a popular choice in the 1990s for home office and small business desktop computer protection, and units like this remain in use anywhere a low-cost standby backup is adequate — legacy computing setups, point-of-sale terminals, small network switches, or other low-load devices that need short-term ride-through protection. Because this unit ships without a battery, it is also suitable for buyers who need the UPS chassis itself for a specific setup and plan to source or replace the battery separately.
This APC Back-UPS 250 BD (BK250) uninterruptible power supply has been inspected and is in good used condition. The case shows light surface scuffs and yellowing typical of age on this era of APC hardware, but it is otherwise intact with no cracks or significant damage. The power cord is present and intact. No battery is included — this UPS requires a special replacement battery (the battery shown in one of our photos is a CSB unit included only as an example of the battery type; it does not ship with this unit). The replacement battery may use a proprietary connector specific to this model, so verify compatibility before ordering a replacement. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
APC |
Model: |
Back-UPS 250 BD |
MPN: |
BK250 |
SKU: |
25513 |
Type: |
Uninterruptible Power Supply (UPS) |
Capacity: |
250 VA |
Output Voltage: |
170V (BK250:170V) |
Form Factor: |
Desktop / Standby |
Output Receptacles: |
2 x NEMA 5-15R (surge-only) + 1 x NEMA 5-15R (battery backup) |
Input Connector: |
NEMA 5-15P |
Battery Included: |
No — battery not included |
Battery Type: |
Special replacement battery required; may use proprietary connector |
Certifications: |
CSR LR63938, UL Listed 42C2 |
Compatible With: |
Computer loads only (per label) |
Country/Region of Manufacture: |
United States |
Condition Notes: |
APC Back-UPS 250 BD (BK250) 250VA UPS inspected and in good used condition. No battery included — requires a special replacement battery that may use a proprietary connector. Power cord present. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
