ZTHY AP20CBL Replacement Battery for Acer Aspire

ZTHY AP20CBL is a 53Wh Li-ion replacement battery designed to restore runtime to specific Acer laptops and Chromebooks using the AP20CBL compatible part numbers.

If your Acer laptop no longer holds charge or shuts down unexpectedly, this ZTHY AP20CBL replacement battery provides a direct-fit option for many recent Acer models including Aspire 5, Aspire 7, Swift 3, Aspire 3 and Chromebook 315 lines. It matches the original form factor and connector layout for a plug-and-play swap when the correct model number is selected. Read the compatibility notes carefully to avoid ordering the wrong pack—Acer uses similar-looking batteries across several series.

Which Acer models does this battery support?

This ZTHY AP20CBL battery is built for a wide range of Acer machines from thin-and-light Ultrabooks to entry-level Chromebooks. It targets specific model families where the AP20CBL part number is used or interchangeable, but always check the sticker on your original pack first.

• Acer Aspire 5: A515-45, A515-46, A515-45G, A515-56, A515-56T, A515-56G
• Acer Aspire 7: A715-43G; Aspire 3 A317-55P
• Acer Swift 3: SF314-43, SF314-511; Vero AV15-51; Chromebook 315 CB315-4H
• TravelMate and other compatible series listed on the product sticker (see exact part numbers)

What are the battery specifications and performance expectations?

The replacement pack uses a 3-cell Li-ion chemistry rated at 11.55V and 53Wh (about 4590mAh). It delivers the same nominal voltage as the factory battery and is sized to fit the original battery bay, so you should expect similar run times if your device hardware and settings match factory conditions.

• Battery type: Li-ion, 3-cell construction for balance of capacity and weight
• Voltage: 11.55V; Capacity: 53Wh / 4590mAh
• Compatible part numbers: AP20CBL, KT.0030B.002, 31CP5/82/70
• Designed to match OEM form factor and connector pinout for plug-and-play

How should I install and activate the new battery?

Installation is straightforward for users comfortable opening the laptop’s bottom panel and disconnecting a single cable. If the battery isn’t recognized immediately, there are simple steps that usually resolve the issue without returning the part.

• Power down the laptop, remove the back cover and unplug the old battery connector before swapping.
• If the battery isn’t detected initially, reseat the connector and ensure the interface is fully seated.
• To wake the pack: discharge to ~10–20% (do not fully drain), then fully charge and run 3–4 charge cycles.
• Follow antistatic and manufacturer safety practices when handling internal components.

What precautions and compatibility checks should I take before ordering?

Acer frequently uses visually similar batteries across different lines, so a physical fit does not guarantee electrical compatibility. Confirm the model and part number printed on your current battery to avoid mismatches that can cause charging issues or poor performance.

• Compare the original battery’s part number and connector position with the listing.
• Check that your laptop model is explicitly mentioned among compatible series.
• Contact support with a photo of your existing battery sticker if you’re unsure before purchasing.
• Do not force a pack into the bay—if it won’t seat easily, it may be the wrong variant.

Who this is for: The ZTHY AP20CBL replacement battery is intended for Acer owners who need to restore mobile runtime without replacing the whole laptop—particularly users of Aspire 5, Aspire 7, Swift 3, Aspire 3, Chromebook 315 and select TravelMate models. It’s suitable for technically comfortable DIYers, IT technicians performing warranty-free repairs, and anyone replacing a worn-out or swollen battery. If you’re uncertain about compatibility, verify the part number on your existing battery or reach out to our support team with photos before ordering.