Xiaomi BN5H rechargeable polymer battery

The Xiaomi BN5H is a rechargeable Lithium‑ion Polymer (Li‑Po) battery designed as a replacement internal battery for select Xiaomi, Redmi, and POCO phone models

Specifications

• <p><strong>BN5H</strong> (internal smartphone battery) &nbsp;</p><p><br></p><p><strong>⚡ Battery Type:</strong></p><p>• <strong>Rechargeable Lithium‑ion Polymer (Li‑Po)</strong> — flat, lightweight pouch cell technology commonly used in modern smartphones. &nbsp;</p><p><br></p><p><strong>🔋 Capacity:</strong></p><p>• <strong>5000 mAh</strong> (typical)</p><p>• Some listings also indicate around <strong>4900 mAh</strong> typical depending on OEM or aftermarket version <strong>(~18.9–19.3 Wh)</strong>. &nbsp;</p><p><br></p><p><strong>📈 Voltage:</strong></p><p>• <strong>3.87 V</strong> nominal operating voltage — standard for Xiaomi smartphone batteries. &nbsp;</p><p><br></p><p><strong>⚡ Energy:</strong></p><p>• Approximately <strong>19.3 Watt‑hours (Wh)</strong> based on 5000 mAh × 3.87 V. &nbsp;</p><p><br></p><p><strong>📦 Physical Form:</strong></p><p>• <strong>Built‑in internal battery</strong> — designed to fit inside the phone’s chassis (dimensions approx. ~87.5 × 64.1 × ~4.7 mm in some listings). &nbsp;</p><p><br></p><p><strong>📌 Protection &amp; Safety:</strong></p><p>• Most high‑quality replacement batteries include <strong>built‑in protection circuitry</strong> against over‑charge, over‑discharge, short‑circuit and overheating (varies by supplier). &nbsp;</p><p>• Often <strong>CE, FCC, RoHS certification</strong> on replacement units for safety compliance. &nbsp;</p><p><br></p><p><strong>🎨 Color:</strong></p><p>• Usually <strong>white</strong> or <strong>black</strong> depending on manufacturer. &nbsp;</p><p><br></p><p><strong>🔧 Installation:</strong></p><p>• Designed as a <strong>non‑user‑removable internal battery</strong> — replacing it typically requires opening the phone and proper tools. &nbsp;</p><p><br></p><p>⸻</p><p><br></p><p><strong>📱 Typical Device Compatibility</strong></p><p><br></p><p>The BN5H battery fits phones that originally shipped with this part number, for example:</p><p>• <strong>Xiaomi Redmi Note 11E / Redmi Note 11E 5G</strong> &nbsp;</p><p>• <strong>POCO M4 5G / POCO M5</strong> (some variants) &nbsp;</p><p>• <strong>Xiaomi Redmi 10 5G</strong> and similar models (depending on region) &nbsp;</p><p><br></p><p><br></p><p><br></p>