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Small black rectangular lithium-ion battery with connector, new condition

Beisite

Beisite 39R6519 39R6520 42C2193 Memory Cache Battery for IBM DS3000 System 2023

SKU CH-QME7-XD5T5

Lithium-ion 2.5 V 24.4 Wh cache battery replaces part numbers 39R6519, 39R6520 and 42C2193 for IBM DS3000, DS3200 and DS3400 systems

  • Battery typeLithium-Ion
  • Battery voltage rating2.5 V
  • Battery capacity24.4 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor IBM DS3000 System
  • Replaces original IBM part numbers 39R6519 39R6520 42C2193
  • 5 V lithium-ion cell delivers 24.4 Wh capacity
  • Fits DS3000 DS3200 DS3400 storage systems
  • New 2023 manufacture ensures full shelf life
  • Single battery module restores controller cache power

Replacement Battery for IBM DS3000 Series

This lithium-ion cache battery replaces part numbers 39R6519, 39R6520 and 42C2193 in IBM DS3000, DS3200 and DS3400 storage systems. It supplies 2.5V and 24.4Wh to preserve write-cache data during power loss. The unit is new and ships as a single battery.

Passive Operation with No Cooling Required

The battery draws no active power and generates no heat or noise while installed in the controller enclosure. It maintains the 2.5V rail only when the main supply fails, so normal operation adds zero thermal load. No fan, radiator or airflow management is involved.

Direct Swap Without Extra Cables or Software

The package includes one battery that matches the original form factor and connector layout. No mounting hardware, cables, firmware tools or configuration utilities are bundled or needed. Installation is a simple module exchange inside the DS3000 family chassis.

How it compares

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

Price $50.99
Pricier than about 82% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand name39R6519
Model name39R6519
Part number39R6520
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating2.5 V
Battery capacity24.4 Wh
Compatibility
Compatible withFor IBM DS3000 System

Questions about this item

How do I install the 39R6519 battery in my DS3000 controller and what step is often missed?

Power down the DS3000, open the controller canister, unplug the old 39R6520 pack, insert the new 2.5 V lithium-ion unit, then re-enable write-back cache in the storage manager — the step most people forget.

What maintenance or replacement will the 42C2193 cache battery need over time?

The 24.4 Wh lithium-ion cell gradually loses capacity; plan to swap it every three to five years or when the DS3000/DS3200/DS3400 logs a cache-battery degradation alert.

What limit appears first on the 39R6520 during sustained heavy write workloads?

The 2.5 V output can sag under continuous cache-flush cycles, triggering the controller to throttle write-back mode and fall back to write-through until the cell recovers.

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