Eaton 744-A3121 Compatible Replacement Battery Pack for 9PX 2000 VA
- Voltage
- 72 V
- Capacity
- 9.0 Ah
- Batteries
- 6
Replacement battery modules for the Eaton 9PX online double-conversion UPS family, 9PX700 through 9PX3000 RT/GRT.
Replacing the whole UPS? Refurbished UPS: load-tested, new batteries, 1-year warranty →
Eaton 9PX battery replacements for the Eaton 9PX online double-conversion UPS line, 1500VA, 2200VA, 3000VA, 6000VA, 8000VA, and 11000VA models. The 9PX series powers data centres, healthcare clinics, and small server rooms across the country.
Always cross-check your specific 9PX model number against the replacement battery reference before ordering. Send us a photo of your existing battery label via our contact form if unsure. Calibration after install is essential: use Eaton IPM (Intelligent Power Manager) or the front-panel cycle. See our UPS battery replacement and calibration guide.
For brand-by-brand selection, see our single-phase smart UPS comparison and Vertiv vs Eaton edge IT guide. Multi-unit fleet contracts and on-site replacement service handled by our service partner.
The Eaton 9PX is an online double-conversion UPS for servers, network rooms and edge IT. Its batteries are sealed lead-acid (VRLA) modules that wear out after roughly 3 to 5 years; replacing them restores full runtime and protection. Use this page to find the right battery for your exact 9PX model.
For the wider range see Eaton replacement batteries.
The 9PX RT line is built on 12 V VRLA blocks. The string voltage grows with the model, which shows in Eaton's matching EBMs: 9PXEBM36RT (9PX1000RT), 9PXEBM48RT (9PX1500RT), 9PXEBM72RT (9PX2000RT, 9PX3000RT) and 9PXEBM180RTG2 (9PX6K), each 9PX taking up to 4 EBMs. Eaton lists EBP-1613 as the internal battery for the 9PX1500RT. Because pack voltage and cell count scale with the VA rating, match the battery to your exact model number (on the rear label, e.g. 9PX1000RT, 9PX3000RT) rather than by VA alone.
Find the model number on the rear or side label, or the front LCD. Select the matching battery from the products below, or send us your model number and we'll confirm the correct pack.
Both restore full runtime. Eaton OEM: module supplied by Eaton, with the manufacturer's warranty. Compatible aftermarket: the same 12 V 9 Ah form factor and connector, with a 1-year UPSPLUSBATTERY warranty.
Typically 3 to 5 years at 20 to 25 °C. Heat is the main life-shortener: service life roughly halves for every ~8 °C of sustained operation above 25 °C. See when to replace a UPS battery.
9PX internal and external (EBM) battery modules are hot-swappable, the UPS keeps protecting the load during the swap:
See how to install a UPS battery.
Eaton lists the EBP-1613 replacement battery pack (quantity 1) for the 9PX1500RT, and the 9PXEBM48RT external battery module for extra runtime (Eaton 9PX1500RT specifications). Check the full model number on the rear label first, since other 9PX 1500 models can differ.
Eaton’s specification pages for these models list hot-swappable internal batteries but no replacement part number. Send us the full model number from the rear label and we confirm the battery set before it ships.
12 V 9 Ah VRLA modules, in a string sized to your model's VA rating. Match by exact model number.
In-warranty unit: check the Eaton warranty terms first. Out of warranty: a compatible module matched on voltage, capacity and connectors is the usual choice, with a 1-year warranty.
Every 3 to 5 years; sooner in warm spaces.
Model names and trademarks belong to their respective owners. UPSPLUSBATTERY.ca is not affiliated with, endorsed by, or authorized by Eaton; aftermarket batteries are compatible replacements.