We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular lithium-ion laptop battery with connector pins and label showing 7.7V 4810mAh 37WH

KingSener

KingSener AP16M5J Laptop Battery 7.7V 4810mAh 37WH

SKU CH-A1RZ-E6VR3 MPN AP16M5J

Replacement 7.7 V 4810 mAh Li-ion battery for Acer Aspire 1 A114-31 A114-32 and Aspire 3 A315-21

  • Battery voltage rating7.7 V
  • Battery capacity4,810 mAh/37WH
  • Ready for Acer Aspire 1 A114-31 and A114-32
  • Fits Acer Aspire 3 A315-21 models
  • 7V 4810mAh 37WH Li-ion capacity
  • 100% brand-new replacement battery
  • High-quality cells with no false capacity

Compatible Acer Aspire Models

The KingSener AP16M5J is a 7.7V 4810mAh lithium-ion replacement battery built for Acer Aspire 1 A114-31 and A114-32 as well as Aspire 3 A315-21 laptops. It delivers 37WH of energy capacity in a black housing that matches the original dimensions. The unit is brand new and uses Grade A cells with a protected circuit board.

Capacity and Cell Quality

The 4810mAh rating meets the original design specification without inflated figures. High-quality Li-ion cells and a reliable PCB provide stable voltage output and longer running time between charges. The supplier advises two to three full charge and discharge cycles at low current to reach optimum performance.

Verify Before Ordering

Confirm the original battery model number and physical appearance against the product photos to ensure correct fit. Check that the connector position and screw-hole layout match your existing pack. Do not purchase if your laptop uses a different voltage or form factor.

How it compares

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

Price $24.99
Cheaper than about 62% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameKingSener
Model nameAP16M5J
Part numberAP16M5J
Power
Battery voltage rating7.7 V
Battery capacity4,810 mAh/37WH

Questions about this item

How many charge cycles before the 4810mAh Li-ion cells need replacement?

The battery uses high-quality Li-ion cells rated for hundreds of cycles; follow the supplier tip to fully charge and discharge two or three times initially, then store above 80% if unused for a month to maximise lifespan.

What is the first limit reached during sustained use — capacity drop or voltage sag?

With a 7.7V 37Wh design, voltage remains stable until the 4810mAh capacity is depleted; the built-in PCB prevents deep discharge, so runtime ends before voltage sag becomes an issue.

How much heat does the pack generate when the laptop runs all day on battery?

Li-ion chemistry and the integrated PCB keep heat low during normal discharge; avoid hot or humid environments and do not leave the charger connected continuously while using the battery.

More in Laptop Chargers & Batteries

Similar items