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Small rectangular lithium-ion battery with green circuit board, black connector, white label showing model NU209

DELL

DELL NU209 3.7V 1892mAh Lithium-Ion Battery Perc 5i 6i PowerEdge 1950 2900 2950

SKU CH-NK94-BYZ9K MPN NU209

A 3.7V 1892mAh lithium-ion battery for Dell PERC 5i and 6i RAID controllers in PowerEdge 1950, 2900 and 2950 servers

  • Battery typeLithium-Ion
  • Battery voltage rating3.7 V
  • Battery capacity1,892 mAh
  • Measurements0.39 in × 6.14 in × 4.25 in
  • Product typeBattery
  • Compatible withPerc 5i 6i PowerEdge 1950 2900 2950
  • Designed for PERC 5i and 6i RAID controllers
  • 7V lithium-ion chemistry delivers stable power
  • 1892 mAh capacity supports continuous operation
  • Genuine Dell part replaces FR463, UF302, U8738
  • Compact proprietary size fits PowerEdge 1950, 2900, 2950

RAID controller battery

The DELL NU209 is a 3.7V 1892mAh lithium-ion battery built for Dell PERC 5i and 6i RAID controllers in PowerEdge 1950 2900 2950 servers. It supplies the cache-backup power that protects stored data during an unexpected power loss. The cell uses a proprietary form factor that fits only the listed controller models. Genuine Dell part numbers include FR463 UF302 U8738.

Who this suits

Administrators maintaining Dell PowerEdge 1950 2900 2950 systems with PERC 5i or 6i controllers will find a direct replacement. Buyers who need a battery for a different RAID card a different server generation or a laptop should look elsewhere. The proprietary size and voltage prevent use in any other device.

Deciding specification

The 3.7V 1892mAh lithium-ion chemistry in a proprietary package is the single detail that determines fit. Only controllers listed as PERC 5i 6i for PowerEdge 1950 2900 2950 accept this exact cell.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $51.99
Pricier than about 83% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Model nameNU209
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating3.7 V
Battery capacity1,892 mAh
Size & build
Measurements0.39 in × 6.14 in × 4.25 in
Product weight2.89 oz
Shipping weight0.13 kg
Package size170 × 109 × 61 mm
Compatibility
Compatible withPerc 5i 6i PowerEdge 1950 2900 2950

Questions about this item

Does the NU209 package include cables or a charger, or is it just the battery?

The listing shows the NU209 battery only in bulk packaging; no cables or charger are mentioned.

Which Dell part numbers does the NU209 replace for the PERC 5i or 6i controller?

It replaces FR463, UF302, U8735, P9110 and 312-0448 in the listed PowerEdge servers.

What does the 3.7 V 1892 mAh rating mean for RAID controller uptime?

The 7 Wh lithium-ion cell provides backup power to the PERC 5i or 6i cache during a power loss.

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