The ACER AS09D31 (also referenced as AS09D70) is a reliable replacement battery crafted for the Acer Aspire series including the 3810, 3810T, 4810, 4810T, and 5810 models. With a voltage of 11.1 V and an approximate capacity of 48 Wh (≈ 4400 mAh or higher depending on variant), this Li-ion 6-cell battery ensures dependable backup power and consistent performance. Built with premium battery cells and integrated safety circuitry, it supports smooth operation, efficient charging, and longer battery life for everyday use. Benefits: Stable power delivery and extended runtime for mobile computing. Built-in protection prevents overheating, over-charging and short-circuiting. High-quality Li-ion cells ensure durability and steady performance. Easy drop-in fit for the listed Acer Aspire models no modification needed. Compatible Laptop Models: Acer Aspire 3810 / 3810T Acer Aspire 4810 / 4810T Acer Aspire 5810 Series Compatible Part Numbers: AS09D31, AS09D70, AS09D34, AS09D36 You can order directly from our website or contact us on WhatsApp.
