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Black rectangular lithium-ion laptop battery with connector plug

KingSener

KingSener AP16B4J laptop battery 4870mAh 37WH 7.6V

SKU CH-5B95-RKVB5 MPN AP16B4J

Replacement lithium-ion battery from LUSONBAY delivering 4870 mAh at 7.6 V for Acer Aspire Switch Alpha 12 models

  • Battery Voltage7.6V
  • Battery Capacity4870mAh/37WH
  • Replacement battery ready for immediate use
  • 4870 mAh capacity extends runtime between charges
  • 37 Wh energy rating matches original specification
  • 6 V output ensures stable power delivery
  • Compatible with Acer Aspire Switch Alpha 12 SA5-271 series

What this battery replaces

This KingSener AP16B4J unit is a new lithium-ion replacement battery rated at 4870mAh and 37WH with a 7.6V output. It is built for owners of the listed Acer Aspire Switch Alpha 12 models who need a direct swap for the original pack.

Check your exact model first

Verify that your device matches one of the compatible part numbers: AP16B4J or 2ICP4/78/104. Confirm the laptop is an Acer Aspire Switch Alpha 12 SA5-271 variant such as SA5-271-5030, SA5-271-707Z, SA5-271-52YL or SA5-271-3981 before ordering.

Thermal and power behaviour

The 7.6V lithium-ion cells deliver the rated 37WH capacity under normal workloads without generating excessive heat. Typical operation stays quiet because the pack has no moving parts, and power draw follows the laptop's own management profile.

Highlights

  • Replacement battery ready for immediate use
  • 4870 mAh capacity extends runtime between charges
  • 37 Wh energy rating matches original specification
  • 6 V output ensures stable power delivery
  • Compatible with Acer Aspire Switch Alpha 12 SA5-271 series

Specifications

BrandLUSONBAY
ModelAP16B4J
Part NumberAP16B4J 2ICP4/78/104
Battery Voltage7.6V
Battery Capacity4870mAh/37WH

Questions about this item

Does the AP16B4J battery package include any tools or cables, or must they be purchased separately?

The replacement battery is supplied as a standalone unit. Installation tools and charging cables are not included and must be sourced separately if required.

Should I choose the 4870mAh 37WH 7.6V version or a different capacity for my Acer Aspire Switch Alpha 12 SA5-271?

The 4870mAh 37WH 7.6V specification matches the original part numbers AP16B4J and 2ICP4/78/104 for the listed Acer models. Select this version for direct compatibility.

What runtime can I expect from the 4870mAh 37WH rating once the battery is installed in an Acer SA5-271-5030?

The 37WH rating indicates the total energy the pack stores. Actual runtime depends on the laptop's power draw, screen brightness and workload, so it will vary in everyday use.

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