Dell 9NJM1 Battery for Alienware 15 R3 / 17 R4

The 9NJM1 Dell battery is a high-quality Li-polymer replacement designed for the Alienware 15 R3, Alienware 15 R4, and Alienware 17 R4 series laptops. It is available in two versions: one rated at approximately 11.4 V / 99 Wh, the other at 15.2 V / 68 Wh, depending on the specific laptop configuration. Constructed with premium A-grade cells and advanced protection circuitry (overcharge, over-discharge, thermal runaway, short-circuit), it ensures safe charging and a long operational lifespan. A premium replacement battery for the Dell Alienware laptop using model 9NJM1, offering stable 11.4 V / 99 Wh or 15.2 V / 68 Wh performance and extended backup time. Built with high-grade Li-polymer cells for precise compatibility, strong performance, and safe everyday use.

• Delivers long-lasting battery backup with reliable power performance.
• Built-in protection systems guard against overheating, overcharging, and short-circuiting.
• High-quality Li-polymer cells ensure improved durability and lifespan.
• Designed for precise fit in supported Alienware models straightforward installation.

Compatible Laptop Models:

• Dell Alienware 15 R3 (with battery model 9NJM1)
• Dell Alienware 15 R4 (many listings show compatibility)
• Dell Alienware 17 R4 (battery part 9NJM1)
• Dell Alienware 17 R5 (some listings show compatibility list includes R5)
• Replacement part numbers: 9NJM1, 09NJM1, 44T2R, MG2YH, HF250.