ZTHY AP18C8K Laptop Battery for Acer Aspire & Swift

If your Acer laptop no longer holds a charge or shuts down unexpectedly, the ZTHY AP18C8K replacement battery offers a factory-style substitute with 11.25V and 50.29Wh (4471mAh) capacity. It matches the AP18C8K and related part numbers and is built to fit specific Acer model lines so you can avoid frequent recharges and regain mobility without buying a new machine.

Which Acer models will this battery work with?

This battery is compatible with a wide range of Acer models across the Aspire, Swift, Chromebook and TravelMate families. Compatibility is model- and revision-specific, so double-check your original battery part number before ordering.

• Acer Aspire 5 series: A514-52, A514-54, A515-56 and related SKUs
• Acer Aspire 7: A715-42G
• Acer Swift 3: SF314-42, SF314-57, SF314-58, SF314-59 series
• Acer Chromebooks and TravelMate: CB315-3H, 314-C933, TMP215-52 series

How do I ensure this battery will fit my laptop?

Acer machines often share similar battery shapes and connectors, which makes visual comparison alone unreliable. Confirm the original battery’s part number (e.g., AP18C8K or listed equivalent) and match the rated voltage and capacity for best results.

• Check the label on your current battery for AP18C8K or matching part codes
• Verify voltage (11.25V) and capacity (50.29Wh / 4471mAh)
• Compare connector shape and mounting points before purchase

What should I do after installing the new battery?

Some replacement batteries need a short wake-up routine to register correctly with your laptop and battery management system. If the battery isn’t recognized immediately, reseat the connector and run a few charge/discharge cycles to normalize performance.

• Reinstall and ensure the battery connector is fully seated
• If not recognized, discharge to about 10–20% (avoid full 0%) then recharge
• Cycle charging 3–4 times to help the battery calibrate

Is this battery safe and what are its technical specs?

The ZTHY AP18C8K uses lithium-ion cells with the same nominal voltage and capacity expected by compatible Acer laptops. Follow standard safety steps for handling laptop batteries and use a compatible charger; do not attempt internal modifications.

• Battery chemistry: Li-ion
• Voltage: 11.25V
• Capacity: 50.29Wh / 4471mAh
• Replacement part numbers include AP18C8K and equivalent codes noted by Acer

Who is this for: The ZTHY AP18C8K battery is aimed at owners of supported Acer Aspire, Swift 3, Chromebook and TravelMate laptops who need a cost-effective, direct-fit power replacement. It’s ideal for students, remote workers, and anyone who wants to extend laptop runtime without replacing the PC—provided they verify their original battery part number and follow the installation and conditioning steps above.