Legacy OMRON UPS (BU-XS, BN-XR, BU-RWL) – battery & replacement guide
These older OMRON UPS models are no longer sold new, but genuine replacement batteries are still available.
| Legacy UPS model | Replacement battery | Current alternative (new UPS) |
|---|---|---|
| BU50XS | BP70XS | BU50SW |
| BU70XS | BP70XS | BU75SW |
| BU100XS | BP100XS | BU100SW |
| BN100XR | BP150XR | BU100RW |
| BN150XR | BP150XR | BN150RA / BU150RC |
| BU2002RWL | BUB2002RW | BU3002R (200V) |
| BU3002RWL | BUB3002RW | BU3002R / BU3002RH |
| BU5002RWL | BUB3002RW | BU5002R |
Current alternatives are suggestions by size and form factor, not official one-to-one successors. Check input voltage and outlet type before switching (rack BN-RA / BU-RC / BU-RW models accept 100–120V; BU3002R / BU5002R are 200–240V models).
Not sure which part you need? Email us your UPS model number (on the rear label), your country and your mains voltage — we confirm compatibility and quote shipping before you pay.