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 three cells

FOCUSTEC

FOCUSTEC AC14B8K 48Wh 3-cell laptop battery

SKU CH-1QZ8-6QNK2

48 Wh lithium-ion replacement battery for Acer Aspire 5, Nitro 5, Swift 3, Spin and Chromebook 15 models

  • Battery TypeLithium-Ion
  • 48Wh capacity powers compatible Acer laptops through long sessions
  • 3-cell lithium-ion design delivers reliable 15.2V output
  • Replaces original AC14B8K and KT.0040G.004 part numbers
  • Fits Aspire 5, Nitro 5, Swift 3 and Chromebook 15 models
  • New condition ensures full rated capacity from first charge

Identity and purpose

This is a new 48Wh lithium-ion replacement battery built for specific Acer laptops. It suits owners of listed Aspire 5, Nitro 5, Swift 3, Spin, Chromebook and ES series machines who need a direct swap for the original pack.

Decisive specification

The part number AC14B8K must match the label on the battery inside your laptop. Models such as AC14B3K and AC14B18J3 share the same physical dimensions but are electrically incompatible, so visual inspection of the installed battery is essential before purchase.

Fit and alternatives

This unit fits the extensive model list supplied, including multiple 15-inch and 17.3-inch configurations. Buyers whose laptop requires a different part number or a higher capacity pack should look for the exact model cited in their service manual.

Highlights

  • 48Wh capacity powers compatible Acer laptops through long sessions
  • 3-cell lithium-ion design delivers reliable 15.2V output
  • Replaces original AC14B8K and KT.0040G.004 part numbers
  • Fits Aspire 5, Nitro 5, Swift 3 and Chromebook 15 models
  • New condition ensures full rated capacity from first charge

Specifications

Battery TypeLithium-Ion

Questions about this item

How long will the 48Wh capacity last in daily use?

The 48Wh rating means the pack stores that much energy; real-world runtime depends on the laptop model, screen brightness, workload and battery health, so exact hours vary by machine.

What does the 15.2V voltage mean for compatibility?

The battery outputs 15.2V, which must match the voltage printed on your original AC14B8K pack; using a different voltage can prevent charging or damage the notebook.

What steps confirm the AC14B8K fits my chassis?

Remove the bottom cover screws, lift the cover and verify the installed battery label reads AC14B8K; identical-looking packs such as AC14B3K or AC14B18J3 are not interchangeable.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.