Samsung Galaxy A03 & A03s (HQ-50SD) Replacement Battery This secondary lithium-ion polymer replacement battery is designed specifically for the Samsung Galaxy A03 and A03s, delivering reliable power and stable everyday performance. Built with quality cells, it helps restore original battery life and smooth daily use. With a high 5000mAh typical capacity, it supports long screen time and dependable standby performance - ideal for repairs or battery replacement. Specifications Model: HQ-50SD Compatible Model: Samsung Galaxy A03 Battery Type: Secondary Li-ion Polymer Capacity: 5000mAh (Typical, 19.25Wh) / 4900mAh (Rated, 18.87Wh) Nominal Voltage: 3.85V Charge Limited Voltage: 4.4V