AP21A8T Battery Replacement for Acer Predator Helios 300 PH315-55 15.4V 5716mAh
The AP21A8T battery is a replacement battery designed for the Acer Predator Helios 300 PH315-55 Series gaming laptop.
This 15.4V 5716mAh Li-ion battery provides stable power performance for gaming, work, and daily use. It is compatible with battery models AP21A8T, AP21A7T, AP21A5T, and KT0040G014.
If your Acer Predator Helios 300 PH315-55 battery no longer holds a charge, drains quickly, or causes unexpected shutdowns, replacing it with a compatible AP21A8T battery can help restore reliable laptop performance.
This battery uses high-quality lithium-ion cells and a built-in protection system to provide safe and stable charging performance.
Product Specifications
| Item | Details |
|---|---|
| Product Type | Laptop Replacement Battery |
| Battery Model | AP21A8T |
| Battery Type | Lithium-ion (Li-ion) |
| Voltage | 15.4V |
| Capacity | 5716mAh |
| Battery Cells | 8 Cells |
| Condition | Genuine New Battery |
| Color | Black |
| Compatible Brand | Acer |
| Compatible Series | Predator Helios 300 PH315-55 |
| Package Includes | 1 × Battery |
Compatible Battery Part Numbers
This AP21A8T replacement battery supports the following battery part numbers:
- AP21A8T
- AP21A7T
- AP21A5T
- KT0040G014
Compatible Laptop Models
The AP21A8T battery is compatible with:
Acer Predator Series
- Acer Predator Helios 300 PH315-55 Series
AP21A8T Battery Features
High Capacity Laptop Battery
The AP21A8T battery provides 5716mAh capacity and an 8-cell design, helping your Acer Predator Helios 300 laptop maintain longer working time.
Stable Li-ion Battery Performance
The lithium-ion battery technology delivers reliable charging cycles and stable power output for gaming and everyday computing.
Built-in Safety Protection
The battery includes protection features to help prevent:
- Over charging
- Over discharging
- Over current
- Short circuit
- Over temperature
Perfect Replacement Solution
This AP21A8T battery is designed as a replacement solution for Acer Predator Helios 300 PH315-55 laptops with worn-out or damaged batteries.
Why Replace Your Acer Predator Helios 300 PH315-55 Battery?
Laptop batteries lose capacity after long-term use. A damaged or aging battery may cause:
- Short battery life
- Laptop shutting down suddenly
- Battery percentage dropping quickly
- Charging problems
- Reduced laptop performance
A new compatible AP21A8T replacement battery can help improve your laptop’s power reliability and extend its service life.
How to Check If This AP21A8T Battery Fits Your Laptop?
Before purchasing, please check:
-
Your laptop model:
Acer Predator Helios 300 PH315-55 Series
-
Your original battery part number:
AP21A8T
AP21A7T
AP21A5T
KT0040G014 -
Battery specifications:
Voltage: 15.4V
Capacity: 5716mAh
Battery cells: 8-cell
Please compare your original battery with our product images and specifications before ordering.
Installation Tips
Follow these steps when replacing your Acer laptop battery:
- Turn off your laptop completely.
- Disconnect the charger.
- Remove the back cover carefully.
- Disconnect the old battery.
- Install the new AP21A8T battery.
- Charge the battery fully before normal use.
Battery First Use Instructions
For the first use:
- Charge the battery to 100%.
- Use the laptop normally until around 10%-15% battery level.
- Recharge it again.
- Repeat several cycles to allow the battery system to calibrate.
Frequently Asked Questions
What battery does Acer Predator Helios 300 PH315-55 use?
The Acer Predator Helios 300 PH315-55 Series uses a compatible AP21A8T battery. The battery specification is 15.4V, 5716mAh, and 8-cell design.
Is AP21A8T compatible with Acer Predator Helios 300 PH315-55?
Yes. The AP21A8T battery is designed for Acer Predator Helios 300 PH315-55 Series laptops.
What is the replacement battery for AP21A8T?
The compatible replacement battery models include:
- AP21A8T
- AP21A7T
- AP21A5T
- KT0040G014
How many cells does the AP21A8T battery have?
The AP21A8T battery has an 8-cell lithium-ion battery design.
What voltage is the Acer AP21A8T battery?
The AP21A8T battery operates at 15.4V.
What is the capacity of AP21A8T battery?
The AP21A8T replacement battery has a capacity of 5716mAh.
How long does an Acer Predator Helios 300 battery last?
Battery runtime depends on usage. Gaming, video editing, and high-performance applications consume more power than normal browsing or office work.
Can I replace the Acer Predator Helios 300 battery myself?
Yes. Users with basic repair experience can replace the battery by removing the back cover and installing the compatible replacement battery.
Does this package include a charger?
No. The package includes only:
1 × AP21A8T replacement battery
