ASUS X502C Battery Buying Guide: 7.4V vs 11.1V, Swelling & Sourcing

The ASUS X502C battery market is characterized by a strong demand for two distinct internal Li-Polymer models: the 7.4V (38Wh) and 11.1V (44Wh) versions. These models are not interchangeable, and consumers frequently report issues with battery swelling and internal connector stability, which are key considerations for both repair and sourcing.

For B2B buyers, wholesale pricing is stable, ranging from approximately $16.67 to $18.25 per unit depending on volume, with major production hubs centered in Shenzhen. There is a growing trend toward high-capacity 6000mAh+ upgrades to meet user demands for extended runtime beyond the standard 3 hours.

Detailed specifications, common technical failure modes, and a sourcing guide are provided in the attached report.