Astrum Acer Aspire 4720 AS07A31 Battery ABT‑AC4720
Brand: Astrum
SKU: ABT‑AC4720
Manufacturer Part Number: ABT‑AC4720
Product Overview
The Astrum AS07A31 Replacement Battery is designed for Acer Aspire 4720 laptops, delivering dependable power and extended runtime.
Operating at 11.1V with a 4400mAh capacity, this external Li‑Ion battery ensures efficient energy storage, reduced memory effect, and consistent performance for students, professionals, and home users.
With advanced safety protections and durable construction, it provides reliable daily use while supporting sustainable practices.
Key Features
4400mAh high‑capacity design for extended unplugged productivity
Optimized compatibility with Acer Aspire 4720 series laptops
Premium Li‑Ion cells with no memory effect
Multi‑protection circuit prevents overcharging, overheating, and short circuits
Certified safe: CE and RoHS compliant
Easy external installation, no tools required
Backed by a 12‑month warranty
Technical Specifications
Feature Specification
Voltage 11.1V
Capacity 4400mAh
Chemistry Li‑Ion
Compatible Part No AS07A31, ABT‑AC4720
Safety Protections Overcharge, overheat, short‑circuit
Warranty 12 months
Compatible Model Numbers
Acer Aspire 4720 Series
Installation & Maintenance Tips
Power Off: Shut down the laptop and disconnect the AC adapter
Remove Old Battery: Unlock and slide out the old external battery
Insert New Battery: Align and secure the Astrum battery in place
Initial Charge: Fully charge before first use for optimal performance
Care Tips: Avoid extreme temperatures; perform full discharge cycles monthly
What’s in the Box
1 × Astrum 11.1V 4400mAh External Battery (ABT‑AC4720)
1 × User Manual (with safety guidelines)