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Black rectangular lithium-ion laptop battery with connector pins

E-buy

E-buy B21N1506 32Wh 7.6V laptop battery

SKU CH-50YT-3PGSY

7.6 V, 32 Wh lithium-ion replacement battery for EeeBook and VivoBook E502 series laptops

  • TypeBattery
  • Lithium-ion chemistry provides stable 7.6V output
  • 32Wh capacity delivers 4110mAh of usable energy
  • Direct replacement for B21N1506 and 0B200-01430600
  • Fits EeeBook E502M, E502MA, E502MS, E502SA, E502NA series
  • Compatible with VivoBook E502NA and L502MA models

Direct replacement for EeeBook E502 series

This 32Wh lithium-ion battery fits the EeeBook E502M, E502MA, E502MS, E502SA and E502NA families. It matches the original B21N1506 part number and the 0B200-01430600, 0B200-01430700 and 0B200-01430800 service codes. Owners of listed VivoBook E502NA models can also use it as a drop-in spare.

Rated 7.6V with 4110mAh capacity

The cell chemistry delivers the factory voltage and watt-hour rating without modification. Normal operation draws power at the laptop's designed rate, so thermals and acoustics stay identical to the original pack. No extra cooling or fan noise is introduced by the swap.

Replaces a worn or failed internal pack

The upgrade is worthwhile when the original battery no longer holds a useful charge or the laptop shuts down off mains power. It is not suited for users who need a higher-capacity pack for longer unplugged runtime, nor for machines outside the E502 and L502 model lists.

Highlights

  • Lithium-ion chemistry provides stable 7.6V output
  • 32Wh capacity delivers 4110mAh of usable energy
  • Direct replacement for B21N1506 and 0B200-01430600
  • Fits EeeBook E502M, E502MA, E502MS, E502SA, E502NA series
  • Compatible with VivoBook E502NA and L502MA models

Specifications

TypeBattery

Questions about this item

How do I install the B21N1506 battery and what step do people miss?

Power off the laptop, remove the bottom screws, disconnect the old pack, connect the new 7.6V 32Wh unit, then reassemble; the step often missed is reconnecting the battery cable fully before closing the case.

What maintenance or replacement will this 4110mAh lithium-ion pack need later?

Lithium-ion cells lose capacity over time; expect shorter runtimes after several hundred charge cycles and replace the pack when it no longer holds enough charge for your needs.

What limit appears first on this 7.6V battery during sustained use?

The 32Wh capacity sets the runtime ceiling; under continuous load the pack will deplete before any thermal or voltage limit is reached.

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