PATONA Battery for Dell Inspiron 14-3421 14R-5421 14R-5437 15-3521 15R-5521

<h2>🔋 PATONA Battery for Dell Inspiron 14-3421 14R-5421 14R-5437 15-3521 15R-5521</h2> <p>The <strong>PATONA high‑performance battery</strong> is equipped with high‑quality brand cells from Panasonic, LG, Sanyo, etc., and provides 100&nbsp;% compatibility with the original Dell batteries thanks to its precise fit and built‑in over‑charge and short‑circuit protection.</p> <h3>✨ Features &amp; Benefits</h3> <ul> <li>⚡ <strong>Voltage 11.1&nbsp;V</strong> – optimal power supply for your Dell notebook</li> <li>🔋 <strong>Capacity 4400&nbsp;mAh</strong> – extended runtime compared to the OEM battery</li> <li>🛡️ <strong>High‑quality Li‑Ion cells</strong> from reputable manufacturers for maximum reliability</li> <li>🔒 <strong>Safety features</strong> – over‑charge and short‑circuit protection</li> <li>🔁 <strong>High cycle life</strong> – many charge‑discharge cycles with low self‑discharge</li> </ul> <h3>📱 Compatible Devices</h3> <ul> <li>Dell Inspiron 14-3421</li> <li>Dell Inspiron 14R-5421</li> <li>Dell Inspiron 14R-5437</li> <li>Dell Inspiron 15-3521</li> <li>Dell Inspiron 15R-5521</li> <li>Dell Inspiron 15R-5537</li> <li>Dell Inspiron 15RV</li> <li>Dell Inspiron 17-3721</li> <li>Dell Inspiron 17R-5721</li> <li>Dell Vostro 2421</li> <li>Dell Vostro 2521</li> </ul> <h3>⚙️ Technical Data</h3> <ul> <li>Voltage: 11.1&nbsp;V</li> <li>Capacity: 4400&nbsp;mAh</li> <li>Type: Li‑Ion</li> <li>Original Lenovo battery types (replacement): 4RXFK, C1JKH, XCMRD, G019Y, 0MF69, 6HY59, 4DMNG, 8RT13, 8TT5W, 68DTP, 6XH00, 9K1VP, VR7HM, V1YJ7, W6XNM, 312-1390, 6K73M, YGMTN, MK1R0, 312-1392, 49VTP, MR90Y</li> </ul> <h3>📦 Package Contents</h3> <ul> <li>1× PATONA battery for the listed Dell models</li> </ul>