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Black rectangular lithium-ion laptop battery with label showing 7.7V 45.5Wh 5920mAh

NShi

NShi AA-PBLN4MT laptop battery 7.7V 45.5Wh 5920mAh for Samsung XE520QEA-KB1US

SKU CH-M0KB-G3GNB

Replacement lithium-ion battery delivers 7.7V and 45.5Wh for compatible Samsung XE520QEA-KB1US series laptops

  • Battery TypeLithium Polymer
  • 7 V 45.5 Wh capacity powers the Samsung XE520QEA-KB1US Series
  • Grade A cells reduce leakage risk and keep output stable
  • Built-in circuit protection guards against over-charge and short circuits
  • Replaces original part numbers AA-PBLN4MT and 21CP5/58/70-2
  • 5920 mAh lithium-ion pack supplied brand new from the manufacturer

Direct replacement for Samsung XE520QEA-KB1US

This lithium-ion battery matches the original AA-PBLN4MT and 21CP5/58/70-2 part numbers. It delivers 7.7V and 45.5Wh capacity using Grade A cells for stable output. Built-in circuit protection guards against overcharge, over-discharge and short circuits. The pack is 100% new from the manufacturer and coloured black.

Upgrade from a degraded or swollen original pack

When the factory cell drops below usable runtime or shows physical swelling, this unit restores full mobility without adapter tethering. The jump is worth it if the laptop otherwise meets your workload but cannot hold charge through a typical session. Buyers who need higher capacity than 45.5Wh or a different voltage platform cannot use this model.

Limits of the 7.7V lithium-ion form factor

Capacity is fixed at 5920mAh and cannot be expanded; runtime scales only with system load and power management. The pack fits only the Samsung XE520QEA-KB1US series — other chassis or connector pin-outs are incompatible. No firmware calibration tool is bundled; the OS handles fuel-gauge learning over the first few cycles.

Highlights

  • 7 V 45.5 Wh capacity powers the Samsung XE520QEA-KB1US Series
  • Grade A cells reduce leakage risk and keep output stable
  • Built-in circuit protection guards against over-charge and short circuits
  • Replaces original part numbers AA-PBLN4MT and 21CP5/58/70-2
  • 5920 mAh lithium-ion pack supplied brand new from the manufacturer

Specifications

Battery TypeLithium Polymer

Questions about this item

Will the AA-PBLN4MT fit the Samsung XE520QEA-KB1US without modification?

Yes, the AA-PBLN4MT is listed as a direct replacement for the Samsung XE520QEA-KB1US series and matches the original part numbers 21CP5/58/70-2.

What is the installation step people most often miss when replacing the battery in the Samsung XE520QEA-KB1US?

Opening the back case to verify the original battery model number before ordering ensures the AA-PBLN4MT matches the installed part.

How long will the 45.5Wh lithium-ion pack last before it needs replacement?

The Grade A cells and built-in circuit protection are designed to extend usable life, but exact cycle count depends on individual usage patterns.

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