We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small rectangular lithium-ion server battery with Dell branding and wire connector

DELL

Dell 312-0448 Server Battery 3.7V 1800mAh

SKU CH-KERQ-NM5X4

Rechargeable 3.7 V lithium-ion battery with 1800 mAh capacity for Dell PowerEdge 1900, 1950, 2900, 2950 and 840 servers

  • Plug typeBattery
  • Rechargeable lithium-ion chemistry enables repeated server power cycles
  • 1800 mAh capacity at 3.7 V DC sustains critical cache during outages
  • Direct replacement for OEM part 0NU209 fits Dell PowerEdge 1900 1950 2900 2950 840
  • Proprietary form factor matches original server battery slot exactly
  • WEEE certification confirms environmentally responsible battery disposal

Server Battery for PowerEdge 1900 1950 2900 2950 840

This Dell 312-0448 battery is a direct replacement module for the listed PowerEdge servers. It supplies 3.7 V DC at 1800 mAh to maintain system time and configuration data when main power is removed. The lithium-ion cell is rechargeable and built to the proprietary form factor required by these platforms.

Proprietary form factor with WEEE certification

The battery uses a Dell-specific size that fits only the compatible server chassis, so no adapter or bracket is needed. Its lithium-ion chemistry supports repeated charge cycles during normal server operation. WEEE certification confirms the unit meets European electronic-waste directives for responsible disposal.

Replaces OEM part 0NU209 with no extra accessories

The package contains only the battery itself; no cables, mounting hardware or management software are included. Installation consists of removing the old cell and seating this module in the same socket. Buyers needing a redundant power supply or a hot-swap controller will not find those functions in this product.

How it compares

Measured against everything we stock in Switch Modules, Transceivers & Add-Ons, at today’s prices. Recalculated every night.

Price $36.99
Cheaper than about 72% of the 1,517 comparable items (median $68.99).

Specifications

Product
Brand nameDell
Power
Plug typeBattery

Questions about this item

What output voltage does the Dell 312-0448 server battery deliver?

The Dell 312-0448 provides a 3.7 V DC output voltage for compatible Dell PowerEdge servers.

Which Dell PowerEdge models accept the proprietary battery size of the 312-0448?

The proprietary battery fits Dell PowerEdge 1900, 1950, 2900, 2950 and 840 servers.

How is the lithium-ion server battery installed, and what step is often missed?

Insert the battery into the server's dedicated compartment, ensuring the connector aligns and seats fully; the step often missed is not pushing the connector in until it clicks.

More in Switch Modules, Transceivers & Add-Ons

Similar items