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Black rectangular lithium-ion battery with label showing 6.4V 1100mAh

Beisite

Beisite 59Y5260 6.4V 1100mAh laptop battery

SKU CH-8NRX-Z7Q81

Replaces 59Y5260, 81Y2432 and BAT 2S1P-1 in the IBM DS5020 RAID controller with a 6.4V 1100mAh lithium-ion pack

  • ColorBlack
  • TypeBattery
  • Compatibilityfor IBM DS5020 Controller Battery
  • Battery TypeLithium-Ion
  • Battery Voltage6.4V
  • Battery Capacity7400mWh/1100mAh
  • Ready for IBM DS5020 controller with 6.4V 1100mAh lithium-ion power
  • Replaces part numbers 59Y5260 81Y2432 BAT 2S1P-1 and 271-00056
  • New condition ensures full 7400mWh capacity from first charge
  • Black lithium-ion cell matches original controller battery form factor
  • 2025 manufacture date guarantees fresh chemistry and long shelf life

Replacement for IBM DS5020 Controller

This lithium-ion battery replaces part numbers 59Y5260, 81Y2432, BAT 2S1P-1 and 271-00056. It delivers 6.4V and 1100mAh capacity for the IBM DS5020 RAID controller. The black unit is brand new and supplied as a single battery. It is designed for administrators maintaining cache-backup power on that specific controller.

Installation and common issues

The battery fits directly into the controller's battery compartment without tools. Observe correct polarity when inserting the connector to avoid damage. A frequent issue is forgetting to reseat the controller module firmly after replacement, which can leave the cache unprotected. Allow the new cell to charge fully before placing the array back into production.

Pre-order checks

Confirm the controller label shows DS5020 and that the existing battery carries one of the listed part numbers. Verify the system firmware is current so the controller recognises the replacement cell. Ensure you have a maintenance window for the brief power-down required during the swap. Buyers needing a different voltage, capacity or form factor for another controller model cannot use this unit.

Highlights

  • Ready for IBM DS5020 controller with 6.4V 1100mAh lithium-ion power
  • Replaces part numbers 59Y5260 81Y2432 BAT 2S1P-1 and 271-00056
  • New condition ensures full 7400mWh capacity from first charge
  • Black lithium-ion cell matches original controller battery form factor
  • 2025 manufacture date guarantees fresh chemistry and long shelf life

Specifications

Brand59Y5260
Model59Y5260
Part Number271-00056
ColorBlack
TypeBattery
Compatibilityfor IBM DS5020 Controller Battery
Battery TypeLithium-Ion
Battery Voltage6.4V
Battery Capacity7400mWh/1100mAh

Questions about this item

How can I verify the 6.4V 1100mAh battery is working correctly after installing it in my IBM DS5020 RAID controller?

After installation the controller should recognise the replacement part numbers 59Y5260 81Y2432 BAT 2S1P-1 and show a healthy charge status without error lights.

What is included in the package and do I need any extra cables or adapters for the IBM DS5020 controller?

The box contains one black lithium-ion battery only; no extra cables or adapters are required for the DS5020 RAID controller.

Which part number should I choose among 59Y5260 81Y2432 BAT 2S1P-1 and 271-00056 for my DS5020?

All listed numbers refer to the same 6.4V 1100mAh lithium-ion unit so any of them will fit the IBM DS5020 RAID controller.

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