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Rectangular black lithium-ion laptop battery pack

KingSener

KingSener AP16B4J 4870mAh 7.6V laptop battery for Acer Aspire Switch Alpha 12 SA5-271

SKU CH-26WG-YSYMY MPN AP16B4J

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

  • Battery typeLithium-Ion
  • Battery voltage rating7.6 V
  • Battery capacity4,870 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible with4,870 mAh/37WH
  • Delivers up to 4870mAh capacity for longer unplugged sessions
  • 6V output matches the original Acer specification exactly
  • Lithium-Ion cells provide reliable recharge cycles
  • Replaces part numbers AP16B4J and 2ICP4/78/104 directly
  • Fits Acer Aspire Switch Alpha 12 SA5-271 series models

Direct replacement for Alpha 12 SA5-271

This KingSener AP16B4J battery is a new lithium-ion unit built to match the original 7.6 V, 4870 mAh specification. It fits the Acer Aspire Switch Alpha 12 SA5-271 and the listed SA5-271 sub-models. The black replacement cell restores factory runtime without modification. Installation uses the existing connector and mounting points.

Suitable for owners of listed Acer 2-in-1s

Buyers with an Acer Aspire Switch Alpha 12 SA5-271, SA5-271-5030, SA5-271-707Z, SA5-271-52YL or SA5-271-3981 can use this pack. It is not for other Acer lines, different Alpha chassis sizes, or tablets that require a different voltage or connector. Systems needing higher capacity or a separate charger must look elsewhere.

7.6 V nominal voltage confirms fit

The single deciding figure is the 7.6 V rating printed on the cell. If the original battery label shows 7.6 V and 4870 mAh, this part is electrically identical. A different voltage means the pack will not work safely in the device. Match the voltage before ordering.

How it compares

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

Price $30.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Product
Brand nameKingsener
Model nameAP16B4J
Part numberAP16B4J
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating7.6 V
Battery capacity4,870 mAh
Compatibility
Compatible with4,870 mAh/37WH

Questions about this item

How long will the 4870mAh capacity last on my Acer Aspire Switch Alpha 12 SA5-271?

The 4870mAh lithium-ion cell delivers 37Wh of energy, matching the original specification for the SA5-271 series so runtime equals the factory battery when new.

Does the 7.6V voltage match the original battery connector on the SA5-271?

Yes, the 7.6V output is identical to the OEM specification and the replacement part number 2ICP4/78/104, ensuring direct compatibility with the listed Acer models.

Will this black replacement battery fit inside the SA5-271 chassis without modification?

The AP16B4J is built to the original form factor for Acer Aspire Switch Alpha 12 SA5-271, SA5-271-5030, SA5-271-707Z, SA5-271-52YL and SA5-271-3981, so it seats in the existing bay.

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