Product Name: Replacement Internal Battery for Sony Xperia Z1

Compatibility: Fits Sony Xperia Z1 (Models L39h / C6902 / C6903 / C6906 / Honami)

Condition: Brand New / High-quality replacement

Battery Type: Lithium-Ion / Lithium-Polymer Rechargeable Battery

Original Specifications: 3000 mAh capacity (typical for Xperia Z1)

Voltage: 3.7V - 3.8V

Safety Features: Built-in protection circuit against overcharging, over-discharging, and short circuits

Function: Direct replacement for old, worn-out, swollen, or failing original battery

Installation Note: Back cover is sealed with adhesive requiring heat gun for removal; professional installation recommended